Mass shooting in San Bernardino, Calif.; at least 14 dead, gunmen at large

Story update by ABC News

A manhunt is under way for up to three gunmen who killed at least 14 people and wounded 14 others in a mass shooting in San Bernardino, Calif., Wednesday afternoon. Follow Yahoo News' live blog for the latest information.

What's known so far:

* At least 14 people are dead and 14 others injured in a shooting at Inland Regional Center in San Bernardino, Calif., Wednesday afternoon.
* Up to three gunmen opened fire inside the facility — which serves people with developmental disabilities — and fled in a dark SUV, police said.
* The gunmen were armed with long guns and were wearing what appeared to be ski masks and vests, witnesses said.
* A manhunt for the suspects is under way.
* FBI and ATF agents cleared the building. About 300 people were evacuated, police said.
* Bomb technicians were called in to inspect a suspicious device.
* President Obama called for stricter gun control in the wake of the shootings.