Turkish maritime has re-opened Bosporus strait to transit tanker and allow oil flow, after a coup attempt against Turkey’s President, Recep Tayyip Erdogan, failed, reported Reuters.

After being shut for several hours for security purposes, shipping agent GAC said that shipments were now passing through the Bosporus, the strait that divides Istanbul into European and Asian sides. Pulse.ng informed that around ten oil tankers were anchored off the coast of Istanbul on the southern side of the strait, still waiting for instructions to sail through one of the world’s largest trading corridors.

The Bosporus is home to pipelines with over 3% of global crude supply. It transmits oil from the Caspian Sea region including Kazakhstan and Azerbaijan. Additionally, it also ships vast amounts of grains from Russia and Kazakhstan to world markets. A BP-led group operating oil and gas pipelines running from Azerbaijan to Turkey via Georgia said there had been no disruptions to shipments. A source from BP-Georgia confirmed that “both pipelines are working normally.”

Reuters earlier reported that the coup attempt failed as authorities loyal to the Turkish government began a major crackdown on those involved in the plot.