Israel carried out it first strikes against Houthi targets in Yemen since the Israel-Iran ceasefire, attacking ports and a power plant around midnight local time Sunday night into Monday morning.

Israel’s military launched airstrikes early Monday targeting ports and facilities held by Yemen’s Houthi rebels, with the rebels responding with missile fire targeting Israel. The attacks came after an attack Sunday targeting a Liberian-flagged ship in the Red Sea that caught fire and took on water,

The Israeli military says the strikes were a response to attacks by the Houthis, who later launched two missiles towards Israel and the occupied West Bank.

Ali Khamenei emerged from his bunker for first time since the Israel-Iran war began, appearing at Ashoura ceremony but not making public statements.