Yemen’s Iran-backed Houthi rebels said Sunday they struck an oil facility in southwestern Saudi Arabia and a key Red Sea port.

A Houthis spokesperson said the Aramco refinery was attacked with a drone. 

The developments came as Iran laid out new conditions for resuming negotiations over the reopening of the Strait of Hormuz.

The Associated Press reported that the Pentagon is pushing U.S. defense contractors to speed up weapons production amid concerns over depleted stockpiles.