Authorities say the suspects believed to have carried out the deadly shooting in San Bernardino, California, on Wednesday had thousands of rounds of ammunition in their possession at the time.
"There was obviously a mission here, we know that. We do not know why. We don't know if this was the target or if there was something that triggered him to do this immediately," said David Bowdich, the assistant director of the Los Angeles division of the FBI.
Syed Farook and his wife, Tashfeen Malik, are suspected of carrying out the attacks. Both were shot and killed by police. (Video via KGTV)
"They were dressed in kind of assault-style clothing, I think is probably the best way to term it. They were both armed with assault rifles. They were both armed with handguns," San Bernardino Police Chief Jarrod Burguan said.
Officials say the two suspects attacked a social services center, killing 14 people and wounding 21 more. The suspects fled the scene in a dark-colored SUV; police later cornered the vehicle, exchanging gunfire with the suspects.
At least one officer suffered non-life-threatening injuries during the shooting.
Police detained one person, but they've since said he wasn't involved in the shooting.
This video includes an image from Getty Images.