RIYADH — Saudi security forces shot dead two alleged ISIS fighters and two others blew themselves up outside the holy city of Mecca on Thursday, the interior ministry said.

State-owned Al-Arabiya TV reported that the security forces surrounded the group in the Wadi Noman area south of the city, showing images of police trucks mounted with machine guns around a walled compound.

No civilians or security forces were killed or wounded, the interior ministry said.

In an earlier, two-day security operation that ended on Sunday, two ISIS suspects were killed and a third was wounded in southwestern Bisha province.

Saudi Arabia, the world’s top oil exporter, has been hit by a spate of deadly shootings and bombings targeting security forces or its Shi’a Muslim minority since last year. ISIS’s local branches have claimed many of them.