Iran has provided the Houthi rebels in Yemen with the technical knowledge to produce anti-ship ballistic missiles. The Houthis had previously converted surface-to-air missiles that they had taken from the Yemeni government into surface-to-surface missiles, calling them the Qaher-2 and Qaher-2M. The Houthis' anti-ship Muhit missile is patterned after the Qaher but is equipped with an optical seeker for homing on ships.