ISIS militants on Friday attacked the Saudi capital, Riyadh, killing at least 25 people and injuring dozens more, Saudi Arabia’s state news agency SPA reported.
The militant group is fighting for a self-declared Islamic caliphate in the Middle East.
SPA did not say where the Saudi attack occurred.
Saudi Arabia has been battling the Sunni Muslim extremist group for several years.
Saudi Arabia launched its first airstrikes in Yemen in April, killing over 2,000 people, mainly Shiite Houthi rebels, and freeing a large number of prisoners.
Saudi-led coalition forces have also been bombing Yemen in recent months, a war that has killed more than 10,000 civilians.
A Saudi official told Reuters on Thursday that Saudi Arabia had conducted a “successful” raid on the Saudi-owned al-Jalal al-Rai air base, which has a base in Jeddah, Saudi Arabia.
Saudi officials also said a drone strike near the al-Aqsa mosque compound, where the Muslim holy site is located, killed the leader of a group involved in the deadly March 2016 suicide bombing at the Al-Akhbar mosque in Jerusalem that killed 19 Israelis.