Developing: Active shooter reported in San Bernardino, multiple victims

Police+and+emergency+vehicles+line+Waterman+Avenue+in+front+of+the+Inland+Regional+Center+in+San+Bernardino%2C+Calif.%2C+scene+of+a+mass+shooting+on+Wednesday%2C+Dec.+2%2C+2015.+%28Luis+Sinco%2FLos+Angeles+Times%2FTNS%29

Police and emergency vehicles line Waterman Avenue in front of the Inland Regional Center in San Bernardino, Calif., scene of a mass shooting on Wednesday, Dec. 2, 2015. (Luis Sinco/Los Angeles Times/TNS)

Ariana Duenas

Authorities responded to an active shooter situation in San Bernardino, California, according to the County Sheriff Department.

As many as three gunmen opened gunfire at a social services center Wednesday, wounding as many as 20 people, according to authorities.

According to the LA Times, a San Bernardino police spokeswoman confirmed there “are fatalities,” but was unsure of how many people had been killed.