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 Israeli air force struck three Houthi-controlled ports and one power plant in Yemen early Monday local time, the Israel Defense Forces announced. As part of a military operation dubbed “Black Flag,

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.