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Merrit Kennedy

Updated 5 p.m. ET

West African troops have crossed the border with Gambia in an effort to uphold the result of the country's presidential election by force.

The winner of the Dec. 1 vote, Adama Barrow, was officially sworn in as president at the country's embassy in neighboring Senegal earlier this afternoon. But Gambia's longtime leader, Yahya Jammeh, has refused to quit power despite mounting regional and international pressure.

Updated at 12:15 p.m. ET

U.S. B-2 stealth bombers struck two ISIS training camps in the Libyan desert Wednesday night, the Pentagon said.

U.S. Secretary of Defense Ash Carter said the camps housed ISIS fighters, many of whom had escaped the group's former stronghold in Sirte, on Libya's central coast. He added that officials are still working to assess the impact of the strikes, but they believe more than 80 ISIS fighters were killed.

Scientists are trying to determine why a group of at least 95 false killer whales stranded themselves on a remote coast in Florida's Everglades National Park. At least 82 of the animals have died, according to the National Oceanic and Atmospheric Administration.

"This is the largest mass stranding ever for this species in the United States," NOAA Marine Biologist Erin Fougères said, "And one of the largest mass strandings we've ever had in the southeast."

In a few hours, longtime Gambian leader Yahya Jammeh's presidential term will expire. But he is clinging to power as troops from regional powers reportedly amass at the border.

International and regional powers are demanding that Jammeh step down and make way for his rival, businessman Adama Barrow, who won last month' s presidential election.

The African Union has stated that it will stop recognizing Jammeh as president after his term expires at midnight local time. (Gambia is five hours ahead of the U.S. East Coast.)

In one of his last moves in office, President Obama has commuted the 35-year prison sentence of Chelsea Manning, the Army private who leaked a massive trove of military secrets to WikiLeaks.

The former intelligence analyst's prison sentence has been shortened to expire on May 17, 2017, according to a statement from the White House.

Two days before Gambian President Yahya Jammeh is supposed to cede power, he has declared a state of emergency in the country. He has refused to step down to make way for Adama Barrow, who won last month's election.

It wasn't immediately clear what the state of emergency entailed, but the move appeared to make a handover of power even more unlikely.

A Nigerian military strike on a camp for internally displaced persons in northeast Nigeria has killed dozens of people, according to Doctors Without Borders.

Teams from the organization, also known as Médecins sans frontières, said in a statement that they've counted 52 dead and 120 wounded as a result of the strike on the camp in Rann. They're treating the injured and preparing to evacuate patients from the camp.

Turkish police have arrested the "main suspect" from an attack on an Istanbul nightclub on New Year's Day that killed at least 39 people, according to the state-run Anadolu news agency.

Officials have not publicly named the suspect. The arrest happened late Monday during a police raid in the Esenyurt neighborhood of Istanbul, Anadolu reported.

Archaeologists have unearthed a unique pendant buried on the site of a Nazi extermination camp. They say that they know of only one other that is similar, which belonged to Anne Frank.

Israel's Yad Vashem Holocaust memorial announced the find on Sunday, saying that they have ascertained the charm may have belonged to a girl named Karoline Cohn.

Noor Salman, the wife of Orlando nightclub shooter Omar Mateen, has been arrested on federal charges.

Salman is charged with "Aiding and Abetting by providing material support to a terrorist and Obstruction of Justice," Orlando Police Chief John Mina said in a statement.

On June 12, 2016, 49 people died when Mateen opened fire at Pulse in the deadliest mass shooting in modern U.S. history. He was killed in a firefight with police.

European leaders are expressing alarm after U.S. President-elect Donald Trump said the EU is "basically a vehicle for Germany" and reiterated his view that NATO is "obsolete."

Speaking about the EU, Trump said "people want their own identity," and therefore "I believe others will leave." He has previously applauded the U.K.'s decision last year to depart from the 28-nation bloc and repeated that sentiment, saying that "I think Brexit is going to end up being a great thing."

A top Egyptian court has ruled against the government's bid to hand over two Red Sea islands to Saudi Arabia.

It's an embarrassing ruling for Egyptian President Abdel Fattah al-Sissi, who has argued that the islands of Trian and Sanafir are historically Saudi. The Supreme Administrative Court disagreed, saying that they are Egyptian sovereign territory.

"It's enshrined in the court's conscience that Egypt's sovereignty over Tiran and Sanafir is beyond doubt," presiding judge Ahmed al-Shazli told the court, according to The Associated Press.

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The U.N. Secretary-General said today he was hopeful that peace talks on Cyprus, being held in Geneva, could lead to a breakthrough, though he cautioned that "we are not here for a quick fix."

Flanked by Turkish Cypriot leader Mustafa Akinci and Greek Cypriot leader Nicos Anastasiades, Secretary-General António Guterres said a breakthrough is what the world needs now.

The Environmental Protection Agency said Fiat Chrysler violated the Clean Air Act by allegedly installing and failing to disclose software in some 104,000 cars and trucks that alters emissions.

The automaker was required by law to disclose the software to regulators during the certification process but did not do so, the EPA announced Thursday. While the agency is still investigating the nature of these devices, it said the software results in increased emissions of nitrogen oxides.

A U.S. military investigation has cleared the U.S. forces of wrongdoing in fighting that left 33 civilians dead and 27 others wounded last year in Afghanistan's Kunduz province, saying that they acted in self-defense.

"To defend themselves and Afghan forces, U.S. forces returned fire in self-defense at Taliban who were using civilian houses as firing positions," according to the U.S. military report published Thursday.

The U.S. Fish and Wildlife Service has designated the rusty patched bumblebee an endangered species — the first such designation for a bumblebee and for a bee species in the continental U.S.

The protected status, which goes into effect on Feb. 10, includes requirements for federal protections and the development of a recovery plan. It also means that states with habitats for this species are eligible for federal funds.

Volkswagen has agreed to pay $4.3 billion to settle civil and criminal allegations over its diesel emissions cheating scheme involving some 590,000 vehicles in the U.S.

The company has also agreed to plead guilty to three criminal felony counts.

Hundreds of thousands of people tuned in to an hours-long rescue operation of a deer hopelessly stuck on ice in Simsbury, Conn.

The scared deer splayed on the frozen river was streamed live by several television channels on Monday, in some cases for more than three hours, as rescue workers tried to get it to safety.

Two bomb blasts near the parliament building in Afghanistan's capital, Kabul, have killed at least 30 people and injured at least 70.

"The first bomb exploded near a parked minibus," NPR's Nishant Dahiya reported. "The second, when the police arrived to help the victims." It happened during the evening rush hour as parliament staff were leaving work.

A female lawmaker was said to be among the injured, Nishant added, and other parliament staff were also reportedly victims of the attack.

In a decade, soccer's biggest tournament is set to become even bigger.

FIFA, the game's governing body, unanimously voted to expand the tournament to 48 teams from 32 teams starting in 2026.

The new format starts with the 48 teams playing one another in 16 groups of three. Then, the top two teams from each group will advance into a 32-team group for the knockout stage.

Scientists predict that a pair of stars in the constellation Cygnus will collide in 2022, give or take a year, creating an explosion in the night sky so bright that it will be visible to the naked eye.

If it happens, it would be the first time such an event was predicted by scientists.

Two law enforcement officers have been killed during a massive manhunt for a murder suspect in Orlando, Fla.

Master Sgt. Debra Clayton radioed from a Wal-Mart shortly after 7 a.m. Monday, saying she was "attempting to contact a murder suspect," according to a statement from the City of Orlando. Other officers radioed two minutes later, reporting that an officer had been shot. The 17-year veteran of the department died after she was transported to a hospital.

Beijing is launching a new police force aimed at tackling its persistent smog problem.

This comes after a month of particularly severe air quality that left the capital and dozens of other Chinese cities blanketed in thick, brown smog.

French police have reportedly arrested more than a dozen people during raids linked to the high-profile robbery of reality TV star Kim Kardashian West in Paris last October.

During the robbery, a group of thieves burst into the private residence where Kardashian West was staying, held her at gunpoint, then escaped on bicycles with jewelry worth about $10 million.

Updated 5:30 p.m. ET

The intelligence report on Russia's interference in the U.S. elections concludes that Russian President Vladimir Putin personally ordered an "influence campaign" that aimed to help President-elect Donald Trump.

A golden statue commemorating the plight of "comfort women" — a euphemism for the Korean women and girls forced by the Japanese to work as sex slaves in front-line brothels during World War II — has caused a diplomatic row between Japan and South Korea.

At the end of December, activists placed the golden statue of a young woman sitting in a chair in front of the Japanese Consulate in the southern city of Busan, South Korea.

Russia says it is beginning to draw down its forces fighting in Syria's war. It decisively entered the war in September 2015, and has been a major factor keeping Syrian President Bashar Assad in power.

This isn't the first time Russia has made this kind of announcement. "Last March, Putin also announced a withdrawal from Syria," NPR's Lucian Kim reports from Moscow. "Instead, Russia ended up intensifying its war effort."

Unexplained, short radio bursts from outer space have puzzled scientists since they were first detected nearly a decade ago.

The elusive flashes — known as fast radio bursts, or FRBs — are extremely powerful and last only a few milliseconds. The way their frequencies are dispersed suggests they traveled from far outside our galaxy. About 18 have been detected to date. They've been called the "most perplexing mystery in astronomy."

Hurricane Matthew. The earthquake in Japan. Flooding in the Deep South, China and Europe. Wildfires in Canada.

Last year sometimes felt like one natural catastrophe after another. Now, new figures from reinsurer Munich Re suggest that it was indeed a particularly bad year.

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