Iran's Revolutionary Guards have said an oil tanker exploded and caught fire after hitting a naval mine while passing through the Strait of Hormuz, Iranian state media reported on Saturday. The Guards did not identify the vessel or specify which country's flag it was sailing under. The reported incident comes amid a rise in attacks and attempted attacks on commercial shipping in the strategic waterway, a key route for global oil and gas supplies. At least 13 incidents involving oil, liquefied natural gas (LNG) and liquefied petroleum gas (LPG) tankers were recorded around the strait between 28 September and 5 October, according to data analysed by three maritime security sources and cited by Reuters. The incidents included attacks, attempted attacks and other activity attributed to Iran's Revolutionary Guards, including drone overflights, surveillance and vessels being hailed over VHF radio. The US Navy-led Joint Maritime Information Center (JMIC) said on Sunday that such activity had continued in the Strait of Hormuz. "These actions continue to demonstrate Iran's intent to assert presence along key transit lanes and maintain pressure on transiting vessels," it said. The 12 incidents recorded by maritime security sources marked the highest weekly total since the US war with Iran began on 28 February. Separate data compiled by the United Nations' shipping agency, the International Maritime Organization (IMO), recorded nine incidents involving vessels during the same week. Maritime security sources said the IMO generally takes longer to verify incidents and formally record them. The closest comparable figure in the IMO's data was eight incidents during the week of 13 July. The rise in attacks comes as Gulf oil exporters increased shipments above pre-war levels for about half of September, according to shipping data. However, attacks on tankers and logistical constraints have raised questions about whether those export levels can be sustained. India has also raised concerns over attacks on commercial shipping after a Panama-flagged tanker, MT On Peace, was struck by an unknown projectile while transiting the Strait of Hormuz off the coast of Oman on Tuesday. India's Ministry of External Affairs (MEA) said 12 crew members were injured, including 11 Indian nationals. The vessel had 19 crew members, 17 of whom were Indian. "We condemn the attack earlier today on a Panama-flagged commercial vessel, MT On Peace, off the coast of Oman, where it was struck by a projectile while transiting the Strait of Hormuz," the MEA said. The injured crew members were evacuated with the assistance of Omani authorities and were receiving medical treatment in Khasab, Oman. The ministry thanked Oman for its assistance and described the continuing attacks on shipping in the region as a "cause of deep concern" for India. "We reiterate our call for an immediate cessation of such attacks in the interests of peace and stability in the region," it said. "The targeting of commercial shipping, seafarers and civilian infrastructure in the region must end, and navigation and commerce through international waterways must be restored at the earliest," the MEA added.