Attacks carried out by Yemen's Houthis caused 73 injured in Saudi Arabia. The attacks used drones and missiles, hitting four Saudi cities.
The Houthi rebels targeted what they described as "civilian and economic targets", according to the information provided.
The military coalition led by Saudi Arabia, which is an ally of the internationally recognized Yemeni government, promised a response against the rebel group.
The Houthis are a pro-Iranian rebel group that controls much of Yemen, including the capital Sanaa, and have carried out regular attacks against Saudi territory since the beginning of the Yemeni conflict.
