Massive gas explosion sparks inferno in San Francisco00:59
San Francisco firefighters were battling a massive three-alarm blaze after an explosion at a construction area spread to at least four buildings nearby.
NBC News, MSNBC and Telemundo to host first Democratic presidential primary debate00:24
Last-minute lovebirds race to show Valentine’s Day affections01:10
Mystery in South Carolina town as $1.5 billion lottery winnings go unclaimed for months01:05
Colorado man who fought off mountain lion speaks out with a warning for other hikers01:18
Florida school hires armed combat veterans to patrol school01:40
Dramatic rescue after early morning mudslide leaves California woman trapped00:51