One of the first police officers to respond to deadly shootings at a social service centre in California has spoken of scenes of “unspeakable” carnage.
Lt Mike Madden said he and officers who arrived later saw dead bodies and had to pass injured people as they tried to “engage the shooters” on Wednesday.
Officials say a husband and wife shot dead 14 people and wounded 21 in the city of San Bernardino.
Thousands attended a candlelit vigil in the city on Thursday evening.
Friends and relatives of the victims were among those present at the San Manuel stadium in downtown San Bernardino.
The lights were turned out as attendees waved candles and lights.
Suspects Syed Rizwan Farook, 28, and Tashfeen Malik, 27, were killed in a shootout with police.
Bomb equipment, weapons and thousands of rounds of ammunition were later found in the attackers’ home.