A cargo vessel was reportedly attacked by small boats west of Iran's coastal city of Sirik, the UK Maritime Trade Operations (UKMTO) agency said Sunday.
The center said the incident was reported approximately 11 nautical miles west of Sirik city, which overlooks the Strait of Hormuz.
It said all crew were reported safe and no environmental impact was recorded.
No details were given about the vessel's cargo, or the identity of those behind the attack.
"Vessels are advised to transit with caution and report any suspicious activity," UKMTO said.