Up to 30 shot by 'three heavily armed men wearing body armour' in US
UP to 30 people have been injured in a mass shooting in San Bernardino, California.
The FBI have said they cannot rule out that the incident may be terror-related.
One suspect has been killed in a shoot-out with police, while another was taken into custody.
The fate of a reported third gunman remains unknown.
14 people have been confirmed dead and at least 14 more are injured.
Reports have suggested the shooters are wearing ski masks and body armour.
Police have said the shooters are 'heavily armed' and 'came prepared'.
The Los Angeles Times reported that the shooting took place at about 11am at a social service office in San Bernardino.
Television images on CNN showed people being evacuated from the building, their arms raised, as triage stations were set up outside. Police and SWAT teams were seen surrounding the building.
NBC News affiliate NBCLA says that the building is "a nonprofit, private community-based agency".
I refuse to accept this as normal. We must take action to stop gun violence now. -H https://t.co/SkKglwQycb— Hillary Clinton (@HillaryClinton) December 2, 2015
The San Bernardino Police Department said in a tweet it "confirmed an active shooter in the area of Orange Show Rd/ Waterman Ave near Park Center."
The San Bernardino Sheriff urged residents to avoid the area.
A spokeswoman from nearby Loma Linda Medical Center said the hospital was expecting patients momentarily. "We're all kind of on standby right now - it could be any minute," spokeswoman Briana Pastorino said. .
A petrol station manager near the site said there is a flood of police activity in the area.
Ana Fuentes, manager of a Shell station about a block from the scene, estimated that there are about 150 police officers flooding the area.
She said she has not got any instructions to stay inside but that customers coming in told her about the shootings at Inland Regional Centre.