Saudi Arabia’s state-owned oil company Saudi Aramco has told some of its European customers that they will not be supplied with oil next month after an attack on the East-West pipeline, Bloomberg reports.

Saudi Aramco told at least two oil refining customers in Europe that they will be allocated no crude oil next month after the kingdom’s key pipeline to the Red Sea was attacked, people informed of the decision said.

European customers normally receive Saudi Arabian crude on so-called term contracts, ensuring a steady flow of supply every month. Those deliveries will not take place next month, the people said, asking not to be identified because the information isn’t public. The decision applies to all European buyers, they said.

The company did not respond to Bloomberg's request for comment that was sent outside of normal business hours.

Saudi Arabia's East-West pipeline has been shut down after several attacks, the kingdom's energy ministry said on Friday. The kingdom's foreign ministry later said the strikes were carried out by drones launched from Iraq.