Portsmouth, May 3 -- A bulk carrier transiting near Iran's coastline in the strategically vital Strait of Hormuz was reported coming under attack from multiple small boats on Sunday (local time), according to the United Kingdom Maritime Trade Operations (UKMTO).

In a maritime security advisory, UKMTO said the incident occured approximately 11 nautical miles (NM) west of Sirik, Iran, at around 11:30 am UTC (7:30 am ET).

"The Master of a northbound bulk carrier has reported being attacked by multiple small craft," UKMTO said.

The agency said all crew members aboard the vessel were safe and that no environmental damage had been reported following the incident. Authorities are currently investigating, according to the UKMTO.

UKMTO did not...