Authorities are investigating whether the couple suspected of killing 14 people at a Christmas party in California had links to Islamist militants, as images were released of weapons and ammunition seized after they engaged in a shootout with police.
Syed Rizwan Farook, 28, and his wife, Tashfeen Malik, 27, were killed in the shootout five hours after the massacre at the Inland Regional Centre social services agency in the city of San Bernardino in California.
Twenty-one people were wounded in the attack, which ranks as the deadliest instance of US gun violence since the December 2012 shooting at Sandy Hook Elementary School in Newtown, Connecticut, in which 27 people were killed.
The dead and wounded accounted for nearly half of the estimated 75 to 80 people who were in the room where the armed couple opened fire.
