A British Petroleum official says a fire on a Turkish section of the Baku-Tbilisi-Ceyhan pipeline has disrupted the flow of oil.

BP spokesman Murat Lecompte says the fire on the pipeline, which broke out overnight in eastern Turkey, was brought under control but has not yet been fully extinguished.

Lecompte said Wednesday the oil stockpile at the Ceyhan terminal was being used for westbound shipments. The cause of the fire was not immediately known.

The Baku-Tbilisi-Ceyhan pipeline has allowed the West to tap oil from Azerbaijan’s rich Caspian Sea fields while bypassing Russia and Iran.