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, Calif., scene of a mass shooting on Wednesday, Dec. 2, 2015. (Luis Sinco/Los Angeles Times/TNS)

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.