A Saudi policeman was wounded when unidentified gunmen opened fire on a patrol in the Red Sea city of Jeddah before escaping in their vehicle, state media said on Monday.
The shooting occurred on Sunday night, and the wounded patrol commander was in stable condition, the official SPA news agency reported, citing a police statement.
Investigations were underway to track down the assailants, it added.
Attacks on security forces in Saudi Arabia have multiplied in recent months with most of them blamed on or claimed by the Islamic State jihadist group.
The deadliest was on August 6 when a suicide bomber detonated an explosives-packed vest in a mosque within the grounds of a police headquarters in the southern city of Abha, killing 15 people.
That attack was claimed by the self-styled Islamic State (IS) affiliate “Al-Hijaz Province”.