Iran live updates: US carrying out 'powerful' airstrikes after earlier Iranian attacks in Strait of Hormuz, CENTCOM says

Saudi Arabia and Qatar have issued condemnations of Iran's alleged attacks on pair of tankers -- Saudi's Vijian and Qatar's Rakiyat -- in the Strait of Hormuz.

"Kingdom affirms that these rejected attacks are an assault on the security and safety of international navigation, and on the security of global energy supplies," the Saudi minister of foreign affairs said in a statement Tuesday.

Qatar called the attacks "unacceptable" and "a grave [and] explicit violation of international law," in a statement Tuesday.

"We demand that the Islamic Republic of Iran immediately cease all practices that undermine regional security or threaten the safety of international maritime navigation, & refrain from endangering global energy supplies & the resources of the countries of the region in pursuit of narrow interests. We hold it fully legally responsible for this attack & for any resulting damages & consequences," the Qatari foreign ministry said.

The United Kingdom Maritime Trade Operations Center issued a warning after it received a report of another tanker being struck by a projectile while transiting the Strait of Hormuz on Tuesday.

The tanker was struck by a drone and sustained "minor structural damage" Tuesday, according to the UKMTO warning.

No casualties were reported, and the tanker continued to its destination, according to the UKMTO.

This would be the third vessel attacked while transiting the Strait of Hormuz since the overnight hours.

Iran fired at least two missiles at commercial vessels transiting the Strait of Hormuz overnight, two U.S. officials told ABC News.

Iran fired at least two missiles at commercial vessels transiting the Strait of Hormuz overnight, two U.S. officials told ABC News on Tuesday.

The statement followed the report by the U.K. Maritime Trade Operations Centre of an "unknown projectile" striking a tanker off the Omani coast Early on Tuesday.

-ABC News' Shannon K. Kingston and Katherine Faulders

An "unknown projectile" struck a commercial tanker off the coast of Oman early on Tuesday, the U.K. Maritime Trade Operations Centre said.

The tanker, which was not identified by name, caught fire after the strike, UKMTO said in a warning posted on social media.

The ship had been traveling southbound about 8 nautical miles off the coast of Limah, Oman, the organization said.

"No casualties or environmental impact reported," UKMTO said.

-ABC News' Joe Simonetti