The UK Maritime Trade Operations (UKMTO) said it received a report of two explosions heard from a tanker in the Strait of Hormuz.
The incident occurred about 9 nautical miles southeast of Kumzar, Oman, according to UKMTO.
The tanker's master reported hearing two explosions while transiting the strait, UKMTO said.
UKMTO confirmed that the crew are safe and the vessel was not damaged.
UKMTO did not immediately provide details on the cause or source of the explosions.
No further information about the tanker's identity or flag was disclosed.