An explosion was heard near Qeshm Island in Iran’s southern Hormozgan province, Iranian state media reported.
The official IRNA news agency said the noise appeared to have originated from the direction of the sea rather than from land. It added that no rockets or missiles had struck the island.
Local authorities had not issued a formal statement explaining the exact source or nature of the blast.
Incident near a strategic waterway
Qeshm is the largest island in the Gulf and lies within the strategic Strait of Hormuz, a major route for global energy shipments.
The incident comes amid continuing maritime and military tensions in the Strait of Hormuz, which has remained a central theater during the Iran war.