U.S. President Donald Trump had a call Monday with Russian President Vladimir Putin to discuss the war in Iran and other issues, which according to the Kremlin was a “frank and businesslike” conversation that lasted about an hour.

Heavy U.S. and Israeli bombardment of Iran has been going on for more than a week, while Iran has launched more attacks on Israel and Gulf countries. Israel is striking Iran-backed Hezbollah in Lebanon, while the militant group fires rockets into Israel.

Iranian state TV announced early Monday that Ayatollah Mojtaba Khamenei was named supreme leader, in defiance of threats by Trump. Khamenei is seen as even more hard-line than his father, the supreme leader killed on the first day of the war. He will now be in charge of Iran’s armed forces and any decision about Tehran’s nuclear program.

U.S. stocks closed higher following a remarkable reversal as oil prices fell from nearly US$120 per barrel below $90.

A 26-year-old Army staff sergeant from Kentucky was identified as the seventh U.S. service member killed during the Iran war, after being wounded on a base in Saudi Arabia on March 1. The first six deaths were Army reservists killed the same day at a Kuwaiti port.

New footage has raised the likelihood that the U.S. military struck an Iranian elementary school where a blast killed at least 165 people, mostly children.