Iran’s Supreme Leader Mojtaba Khamenei said Thursday that the leverage of closing the Strait of Hormuz should be used and that Iran’s attacks on Gulf Arab neighbors will continue.

His first statement since his appointment was read on state television by a news anchor. Khamenei did not appear on camera, and an Israeli assessment indicates he was wounded in the war’s opening salvo.

Two tankers were ablaze in an Iraqi port on Thursday after a hit by suspected Iranian explosive-laden boats, a step up in attacks that have cut off oil from the Middle East and defied Donald Trump’s claim to have won the war he launched two weeks ago.