The suicide bomber in an attack on a southwest Saudi mosque has been identified, the Saudi Interior Ministry said Saturday.
The Al Arabiya network said the Saudi Interior Ministry had named Yousef bin Suleiman bin Abdullah, 21, as the suicide bomber.
ISIL-affiliated accounts on social media brandished photographs of the suspected bomber with the name "Abu Sinan Najdi" late on Friday.
The posts included an audio message purportedly from bin Abdullah warning of additional attacks in retaliation to Saudi Arabia's part in the US-led campaign against Islamic State.