Iran will fire long-range missiles during a naval drill in the Gulf on Saturday, the semi-official Fars news agency reported on Friday.

“The Iranian navy will test several kinds of its missiles, including its long-range missiles, in the Persian Gulf on Saturday,” Admiral Mahmoud Mousavi, deputy commander of the Iranian navy, told the news agency.

He added, “The firing of missiles is the final part of the navy drill. The final phase of the drill is to prepare the navy for confronting the enemy in war situations.”

Navy commander Rear Admiral Ali Rastegari was quoted as having said “medium-range, short-range missiles and smart torpedoes” would be test-fired.

Iran began a 10-day naval drill in the Gulf last Saturday to show its resolve to counter any attack by foes such as Israel or the United States, Reuters reported.

On Tuesday, Iran threatened to stop the flow of oil through the Strait of Hormuz, the waterway through which at least a third of the world’s oil must pass in order to get to markets in the West, if it became the target of an oil export embargo over its nuclear ambitions.

The U.S. subsequently warned Iran against closing the strait, saying “anyone who threatens to disrupt freedom of navigation in an international strait is clearly outside the community of nations; any disruption will not be tolerated.”

Reuters added that Washington has expressed concern about Tehran’s missiles, which include the Shahab-3 strategic intermediate range ballistic missile with a range of up to 1,000 km (625 miles), the Ghadr-1 with an estimated 1,600 km range and a Shahab-3 variant known as Sajjil-2 with a range of up to 2,400 km.

On Thursday, Iran claimed that it observed an American aircraft carrier sailing in the same area where it was conducting military exercises.

Officials in Tehran said that they had taken photos and videos of the carrier plying the waters in the Strait of Hormuz, but did not release that material.