Explosion collapses part of building; 4 seriously hurt
An explosion caused part of a building in Sylmar to collapse on Tuesday, causing at least four serious injuries.
The blast occurred at a one-story building at 12349 Gladstone Ave., according to the Los Angeles Fire Department.
Firefighters are on scene and believe more people might be trapped inside the building. A search is ongoing.
No other details were immediately available, an LAFD officials said.
-- Andrew Blankstein (Twitter: @anblanx)