Saudi-based Rabigh Refining and Petrochemical Company (PetroRabigh) said on Sunday it was working to restore operations at most its units which were disrupted after a power outage on Saturday.

"A sudden interruption of electrical power supplies occurred from the supplying company to PetroRabigh complex which caused major electrical power interruptions to most of the complex units and temporarily affected the operations," the firm said in a  statement to the stock exchange. 

The statement did not specify which units were affected or when they will start operating again. "Efforts are currently in progress to resume power supplies and restor units operations to its normal status," it said.

PetroRabigh is a joint-venture between Saudi Aramco and Japan's Sumitomo Chemical and it has three polyethylene units at its giant petrochemical complex in Rabigh, located on the Red Sea coast of Saudi Arabia. - Reuters