AP - A fire official said Monday that it remains unclear whether everyone is accounted for after a massive explosion that killed at least five people at an under-construction power plant.

AP - The federal government was shuttered Monday while the Mid-Atlantic region dug out from as much as three feet of snow that left tens of thousands without power and blocked trains, planes and cars, with another storm looming.

AP - President Barack Obama says it's time for Republicans who have attacked his health care proposals from the sidelines to step before the cameras and present their own ideas.

AP - Endeavour and six astronauts rocketed into orbit Monday on what's likely the last nighttime launch for the shuttle program, hauling a new room and observation deck for the International Space Station.

AP - The New Orleans Saints turned the Super Bowl's postgame celebration into something out of the French Quarter.

AP - A senior Iranian envoy says he has formally told the U.N. nuclear agency that his country will enrich uranium to higher levels.

AP - North Korea warned South Korea that any attempt to bring down the communist country would draw "strong measures" from its military, a threat issued Monday even as Pyongyang embarked on a flurry of diplomacy with Seoul, Washington and Beijing.

AP - Charlie Sheen and his wife are due in court Monday amid domestic violence allegations. They'll be arriving separately and only the judge can determine if they can leave together.

Reuters - At least five people were killed and 12 injured on Sunday when a massive explosion rocked a large gas-fired power plant being built in Middletown, Connecticut, the town's mayor said.

Reuters - A senior Chinese official was in North Korea on Monday and a top U.N. political envoy was slated to arrive a day later in a new push to have the reclusive state return to stalled nuclear disarmament talks.

Reuters - Ukrainian opposition leader Viktor Yanukovich on Monday pressed rival Yulia Tymoshenko to concede defeat after his slender victory in a presidential election that could tilt the ex-Soviet state back toward Moscow.

Reuters - Iran says it will start producing higher-grade nuclear fuel on Tuesday and add 10 uranium enrichment plants over the next year in a nuclear expansion sure to stoke tensions with the West.

Reuters - Hundreds of Haitian earthquake survivors protested in a suburb of the wrecked capital on Sunday, accusing a district mayor of corruption and hoarding food aid provided by relief groups, witnesses said.

Reuters - Taliban militants are digging in ahead of a major NATO operation in Helmand province in southern Afghanistan, in one of the biggest offensives in the eight-year-old war.

AFP - Ukraine has narrowly chosen the pro-Russia Viktor Yanukovich as its next president, results showed Monday, after elections that rejected the West-leaning policies of the Orange Revolution.

AFP - Iran on Monday officially notified the UN nuclear watchdog of its plans to produce 20 percent enriched uranium, Tehran's envoy to the International Atomic Energy Agency told Al-Alam television.