A senior Iranian military commander says his country has full control of the Persian Gulf, and the United States Navy does not belong there.
The commander, General Alireza Tangsiri, is Commander-in-Chief of the Iranian Revolutionary Guards. The Iranian news agency Tasnim reported on his comments.
"We can ensure the safety of the Persian Gulf and there is no need for the presence of aliens such as the US and the countries whose homeland is not here," Tangsiri  He added: "All carriers and military and non-military ships are controlled and there is complete surveillance of the waterway.
Iran has proposed taking military action in the Gulf region to block oil supplies from other countries. This proposal came after the US government announced this month to impose new economic sanctions on Iran
The sanctions followed a US decision in May to withdraw from a deal between Iran and the world powers. President Donald Trump agreed to withdraw from the agreement, which he strongly criticized. The sanctions are aimed at increasing pressure on Iran as US officials seek a new deal to limit Iran's nuclear activities and missile program.
A US military official said earlier this month that one reason why the US holds naval vessels in the Gulf "ensured free movement of trade on international waterways."
The head of the Iranian Revolutionary Guards Major General Mohammad Ali Jafari warned on Monday that unfriendly nations would not be successful in potential conflicts in the Gulf.
"The enemies are strict and avoid any conflict with Iran, because they know it is not favorable for them ," reported the Tasnim Jafari news agency.
Also on Monday, Iran appealed to the Supreme Court of the United Nations to lift US sanctions.