A top leader of the Iran-backed-Houthi militias in Yemen said they will keep up their support for Palestinians in the Gaza Strip until Israeli “aggression stops, and the siege is lifted.”

“Our operations in support of Gaza will not cease, no matter the sacrifices,” said Mahdi al-Mashat in a statement Wednesday.

The Houthis are the last militant group in Iran’s self-described “Axis of Resistance” that is capable of regularly attacking Israel.

They have been firing long-range missiles at Israel in the months since it resumed the war in Gaza, setting off air raid sirens but generally causing few casualties. They have also been attacking shipping in the Red Sea and Gulf of Aden.