President Donald Trump does not believe Iran has successfully laid mines in the Strait of Hormuz, noting that the US has destroyed "almost all" of their mine-laying ships.

"We destroyed almost all of their mine ships in one night," Trump said, indicating that up to 60 Iranian vessels may have been struck. "Virtually their entire fleet has disappeared."

He also urged oil tankers to use the strait, assuring that it is safe despite recent attacks on three vessels in the area. Iran has claimed responsibility for at least two of those attacks. "I think they should use that strait," Trump added.