Yemen's Houthis said they had struck a number of “sensitive” crude oil supply and transportation facilities linking eastern Saudi Arabia to the Red Sea city of Yanbu, Al Jazeera reports.

Houthi spokesperson Yahya Saree said the actions were taken in response to the intrusion of Saudi drones into Yemen's airspace.

Saudi Arabia's Foreign Ministry condemned the attacks, saying it reserves the right to respond to the source of the “aggression.”