Tehran, May 17 -- Iran's Supreme Leader Ali Khamenei on Saturday denounced as "a lie" U.S. President Donald Trump's recent claim that he sought to use power to ensure peace, citing the Trump administration's support for the killings in the Gaza Strip.

Khamenei made the remarks at a meeting with a large number of teachers in Tehran, while reacting to Trump's comments on wanting peace in the region during his tour of West Asia earlier this week, according to footage of his remarks published on his website.

"Trump said he wants to use power for peace; he lied. He and other U.S. officials, and U.S. administrations have used power to support the killings in Gaza, for warmongering in any place they can, and to back their mercenaries," the Ira...