SAN BERNARDINO, Calif. – Police say two suspects, one male and one female, are dead after the shooting at a Southern California social services center.
Law enforcement officials have identified the shooters as 28-year-old Syed Farook and 27-year-old Tashfeen Malik.
The official, who was briefed on the case, was not authorized to speak to the media about the ongoing investigation and spoke on condition of anonymity.
Meredith Davis, a spokeswoman with ATF, told KCAL9-TV the two suspects who died in a shootout with police were each armed with a long gun and a handgun.
They were wearing tactical-style clothing that was "loaded with magazines for a gunfight," she said Wednesday.
Davis said the suspects also threw a thick-gauge copper pipe out of the SUV, but no explosives were found inside.
The fake pipe bomb was equipped with a piece of material made to look like a wick.
Authorities are tracing the serial numbers on the guns and authorities will be dispatched to those addresses.
Police say a third person was detained who was seen running near the gunbattle between officers and the two suspects.
San Bernardino Police Chief Jarrod Burguan also said at a news conference Wednesday evening that it was not clear if that person is connected to shooting.
Authorities say 14 people were killed and another 17 injured. An officer was also struck and taken to the hospital with non-life-threatening injuries.
The incident was reported in the 1300 block of South Waterman Avenue in San Bernardino, according to KTLA, citing the fire department.
The incident occurred at the Inland Regional Center, a facility that helps people with developmental disabilities.
Late Wednesday afternoon, the San Bernardino County Department of Public Health confirmed that several of its employees were in the facility when gunmen opened fire.
The department says on a verified county Twitter account that it's not releasing any more information because of the ongoing investigation and out of respect for the victims.
The health department says it will be providing services to its employees and their families.
Center President and CEO Marybeth Feild said earlier Wednesday that the department was renting out a conference area at the center for a banquet when the attack took place.
The FBI is looking at several possibilities for what drove the shooters to kill.
David Bowdich, assistant director of the FBI's field office in Los Angeles, says one possibility is workplace violence and another is "terrorism."
KTLA first reported San Bernardino Fire Department units responded to a report of a “20-victim shooting” Wednesday.