An explosion has caused a fire on an Iranian tanker near the coast of Saudi Arabia, Iranian media say.
The vessel, belonging to Iran’s national oil company (NOIC), was 60 miles (97km) from the Saudi port city of Jeddah when the incident took place, reports say.
The ship’s two main storage tanks are said to be damaged, spilling oil into the Red Sea, but no-one was injured.
NOIC claimed the vessel was hit by missiles, but has not given evidence.
The incident comes amid heightened tension between Iran and Saudi Arabia.
Last month, 18 drones and seven cruise missiles hit a major oil field and processing facility in Saudi Arabia, which blamed Iran for the attack.
And US officials said Iran was responsible for attacks on two oil tankers in the Gulf in June and July, as well as attacks on another four tankers in May.
Iran denied involvement in all the incidents.