The person or people who opened fire fled the area, possibly in a dark SUV, and authorities have no word on their location, identities or motives, Jarrod Burguan, chief of the San Bernardino Police Department, said at a news conference.

“We do not know if this is a terrorist incident,” David Bowdich, assistant director in charge of the FBI’s Los Angeles office, said at the same news conference. “It may be, or it may not be.”

Burguan said that “at minimum, we have a domestic terrorist-type situation that occurred here.”