The Palestinian Hamas group said Saturday that explosions that shook a refugee camp in southern Lebanon were caused by an electrical short-circuit in a storage area for oxygen bottles used to treat coronavirus patients.

Later in the day however, a Lebanese security official said that the explosion in the camp was clearly ammunition -- not oxygen bottles. The official, who spoke on condition of anonymity in line with regulations, did not elaborate.

Three people died in severe weather in Tennessee, one person died and several were injured in an apparent tornado at an Arkansas nursing home, and emergency crews in southern Illinois were responding to reports of workers trapped inside an Amazon warehouse after its roof collapsed from storm damage.

At least one fatality was also reported in Missouri as severe storms, some believed to be tornadoes, swept across the Midwest and parts of the South late Friday and into Saturday morning.

Several explosions shook a Hamas arms depot in the Palestinian refugee camp of al-Bourj al-Shamali in southern Lebanon on Friday night, causing deaths and injuries, Lebanon’s National News Agency said.

The two journalists who shared this year's Nobel Peace Prize received their awards Friday during a pomp-filled ceremony in Norway, where both warned that the world needs independent reporting to counter the power of authoritarian governments.

Maria Ressa of the Philippines and fellow laureate Dmitry Muratov of Russia gave their Nobel lectures at Oslo City Hall. The Norwegian Nobel Committee awarded them the 2021 Nobel Peace Prize for their separate fights for freedom of expression in countries where reporters have faced persistent attacks, harassment and killings.

Foreign ministers from the Group of Seven industrialized nations are gathering for a weekend in Liverpool, with the British hosts seeking elusive unity to ease growing tensions with Russia, China and Iran.

U.K. Foreign Secretary Liz Truss is due to greet U.S. Secretary of State Antony Blinken and other G-7 counterparts Friday evening ahead of two days of talks in the northwest England port city famed for its youthful energy, its soccer teams and The Beatles.

Britney was freed. Bennifer came back. So did Broadway, yay! And actually, the Beatles! As for Bond — James Bond — he said goodbye, at least the Daniel Craig version.

Harry and Meghan spoke to Oprah, and boy, we listened. We listened, too, to Taylor Swift, who sang about a failed affair and a still-missing scarf (ex-lovers: hang onto knitwear at your peril!)

Not all two-legged dinosaurs were like the lumbering Tyrannosaurus rex.

An analysis of dinosaur tracks from 120 million years ago unearthed in Spain adds to growing evidence that these meat-eating prehistoric beasts belonging to the same group as T.rex could be highly agile.

Three ocean drones were launched from Rhode Island Thursday and will travel along the Gulf Stream, collecting data in tough winter conditions that would be challenging for traditional ships with crews.

Saildrone, headquartered in Alameda, California, makes autonomous surface vehicles powered by the wind and sun to measure climate quality data and do mapping in remote oceans for scientists worldwide. The company launched the drones from Newport, Rhode Island, on a mission to sail the strong ocean currents in the North Atlantic for six months.

Chinese leaders on Friday promised tax cuts and support for entrepreneurs to shore up slumping economic growth after a campaign to rein in surging corporate debt caused bankruptcies and defaults among real estate developers.

A statement issued after an annual planning meeting led by President Xi Jinping called for "maintaining stability," reflecting anxiety about rising risks after economic growth sagged to an unexpectedly low 4.9% over a year earlier in the quarter ending in September.

President Joe Biden is getting ready for his first late-night TV appearance since taking office.

Biden is set to appear Friday on NBC's "The Tonight Show" with comedian Jimmy Fallon. Biden will appear virtually; the White House didn't say where he will be when he tapes the segment.