WASHINGTON, June 11 (Reuters) - U.S. President Donald Trump on Thursday said he believed Iran's Supreme Leader Mojtaba Khamenei had approved a deal with the U.S. that would trigger the opening of the Strait of Hormuz and the lifting of a U.S. blockade on Iranian ports.

When asked by a reporter at the White House whether Khamenei had approved the deal, Trump said: "I understand the answer is yes."

Trump described the deal as "a very strong memorandum of understanding," adding it was "a little conceptual, but it's something that's going to get done".