Turkish authorities continued searching on Thursday for 10 crew members missing after a cargo ship sank off the coast of Istanbul following a collision with another vessel, ⁠state-owned Anadolu ⁠Agency reported.

Two Turkish-flagged commercial vessels collided in the Sea of ​Marmara off Istanbul on ⁠Wednesday. Authorities said one of the ships, carrying ⁠10 crew ‌members, ⁠is believed to have sunk within about 11 minutes of ​the crash.

Search operations involving the ‌coast guard, navy, disaster management agency and other emergency services were continuing on Thursday. Anadolu ​said 18 vessels, five helicopters, two drones, an aircraft and ‌a naval ​vessel equipped for underwater searches were being deployed in the ⁠operation.

The second ship, ‌which was not damaged ​in the collision, remained anchored off Silivri. ‌An ⁠investigation ⁠into the cause of the ​accident is under way, Anadolu ​said.