Iran claimed it launched its “most intense and heaviest operation” since the start of the war, state media reported, as interceptions were reported across Gulf states and Israel. Russia is also now giving Iran specific advice on drone tactics, a source tells CNN.

Israel said it had begun an “additional wave” of strikes on targets in Tehran today. Beyond the capital, a CNN team in northern Iran reported nighttime air raids lasting nearly an hour. Strikes in Iran have killed more than 1,300 since the conflict started, according to Iran’s UN ambassador.

 The son of Iran’s president says new Supreme Leader Mojtaba Khamenei “is safe” amid rumors he was injured in US-Israeli strikes. Khamenei has not been seen in public since his election on Sunday.