U.S. intelligence officials have determined that Russian President Vladimir Putin likely didn't order the death of imprisoned opposition leader Alexei Navalny in February, according to an official familiar with the determination.

While U.S. officials believe Putin was ultimately responsible for the death of Navalny, who endured brutal conditions during his confinement, the intelligence community has found "no smoking gun" that Putin was aware of the timing of Navalny's death — which came soon before the Russian president's reelection — or directly ordered it, according to the official.

Spanish Prime Minister Pedro Sánchez said Monday he will continue in office "even with more strength" after days of reflection.

Sánchez shocked the country on Wednesday, announcing he was taking five days off to think about his future after a court opened preliminary proceedings against his wife on corruption allegations.

From New York to California, students protesting the Israel-Hamas war slept in tents at college campuses, as some universities moved to shut down encampments and arrested dozens of demonstrators after reports of alleged antisemitic activity.

With the death toll mounting in the war in Gaza, protesters nationwide are demanding schools cut financial ties to Israel and divest from companies they say enable the conflict. Some Jewish students say the protests have veered into antisemitism and made them afraid to set foot on campus.

Students protesting the Israel-Hamas war at at universities across U.S., some of whom have clashed with police in riot gear, dug in Saturday and vowed to keep their demonstrations going, while several school faculties condemned university presidents who have called in law enforcement to remove protesters.

As Columbia University continues negotiations with those at a pro-Palestinian student encampment on the New York school's campus, the university's senate passed a resolution Friday that created a task force to examine the administration's leadership, which last week called in police in an attempt to clear the protest, resulting in scuffles and more than 100 arrests.

Student protests over the Israel-Hamas war have popped up on an increasing number of college campuses following last week's arrest of more than 100 demonstrators at Columbia University.

The students are calling for universities to separate themselves from any companies that are advancing Israel's military efforts in Gaza — and in some cases from Israel itself.

Ukraine has sidelined U.S.-provided Abrams M1A1 battle tanks for now in its fight against Russia, in part because Russian drone warfare has made it too difficult for them to operate without detection or coming under attack, two U.S. military officials told The Associated Press.

The U.S. agreed to send 31 Abrams to Ukraine in January 2023 after an aggressive monthslong campaign by Kyiv arguing that the tanks, which cost about $10 million apiece, were vital to its ability to breach Russian lines.

Months before they pitched their tents on Columbia University's main lawn, inspiring a wave of protest encampments at college campuses nationwide, a small group of pro-Palestinian student activists met privately to sketch out the logistical details of a round-the-clock occupation.

In hours of planning sessions, they discussed communications strategies and their willingness to risk arrest, along with the more prosaic questions of bathroom access and trash removal. Then, after scouring online retailers and Craigslist for the most affordable options, they ordered the tents.

Chinese President Xi Jinping on Friday told top U.S. diplomat Antony Blinken that the world's two biggest economies should be "partners, not rivals", adding that there were a "number of issues" to be resolved in their relations.

"The two countries should be partners, not rivals," Xi said, according to state broadcaster CCTV, adding: "There are still a number of issues that need to be resolved, and there is still room for further efforts."

The U.S. is expected to announce Friday that it will provide about $6 billion in long-term military aid to Ukraine, U.S. officials said, adding that it will include much sought after munitions for Patriot air defense systems.

The officials said the aid package will be funded through the Ukraine Security Assistance Initiative, which pays for longer-term contracts with the defense industry and means that it could take many months or years for the weapons to arrive. The officials spoke on condition of anonymity to discuss details not yet made public.

The leaders of the United States, Britain, France and more than a dozen other countries called in a joint statement Thursday for Hamas to release the scores of hostages it is holding, the White House said.

"We call for the immediate release of all hostages held by Hamas in Gaza for over 200 days. They include our own citizens," the leaders said.