The Islamic state has claimed that its two 'followers' had carried out the San Bernardino mass shooting in California, in its radio news bulletin on Saturday.
Isis' al-Bayan Radio said that Syed Farook and Tashfeen Malik, who are the suspects in Wednesday's attacks that left 14 people dead, were 'martyrs' and 'supporters' of the Islamic State, also referred to as Daesh.
"Two followers of Islamic State attacked several days ago a centre in San Bernadino in California," Isis said in an online radio broadcast.
Malik had pledged allegiance to Isis leader Abu Bakr al-Baghdadi on Facebook on the day of the shooting, as per reports.
Following the California shooting, Isis supporters on Twitter were seen 'celebrating' the attack on Twitter.
Officials have said that the San Bernardino attack may have been 'inspired' by Isis, though there is no confirmation of any link to the Daesh terror group.
FBI official David Bowdich said on Friday that the incident was being investigated as 'an act of terrorism'.
Farook, a US citizen of Pakistan origin, was married to Malik, who was from Pakistan but whose family had moved to Saudi Arabia. The couple had a baby this year.
Farook and Malik were killed after a car chase and gun-battle with the police four hours after they opened fire at the Inland Regional Centre in California.