ISIS supporters celebrated the massacre in San Bernardino on forums on the “Dark Web” and on Twitter in Arabic.
Using the hashtag #American_Burning, the extremists began celebrating the attack, which left 14 people dead, just hours after it took place on December 2.
“Three lions made us proud. They are still alive,” one ISIS adherent tweeted in Arabic after the shootings at Inland Regional Center in San Bernardino, reported Vocativ.
“California streets are full with soldiers with heavy weapons. The Unites States is burning #America_Burning #Takbir.”
“God is great and he the one to be praised for that,” another supporter posted in a forum in Arabic. “This is hell with god’s will.”
Another supporter posted on Twitter: “God is the greatest. May god spread fear in the homes of the Crusaders.”
The suspects, who were killed in a shootout with police, were later identified as Syed Rizwan Farook, 28, and his wife or fiancee Tashfeen Malik, 27.
The motive behind the shooting is not clear yet. Officials have not ruled out links to terrorism, though ISIS, also known as Daesh or the Islamic State, did not take credit for the attacks.
Farook’s dad told the Daily News that his son was a very devout Muslim.
“He was very religious,” the elder Syed Farook said. “He would go to work, come back, go to pray, come back.
But Farook’s brother-in-law said he doesn’t know why the couple did it.
“I have no idea why he would do that, why would he do something like this,” Farhad Kahn said during a press conference hosted by the Council on American-Islamic Relations. “I have absolutely no idea. I am in shock myself.”