Explosion levels building in Washington, D.C.

A massive gas explosion leveled a building today in Washington, D.C. Just minutes before the blast, 16 children were evacuated from a nearby day care. NBC News’ Yamiche Alcindor reports on the quick thinking by firefighters that saved lives. » Subscribe to NBC News: NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features , , , Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows. Connect with NBC News Online! Breaking News Alerts: Visit : Find NBC News on Facebook: Follow NBC News on Twitter: Get more of NBC News delivered to your inbox: #Explosion #WashingtonDC #Building