Two Turkish-flagged vessels collide off Istanbul; 10 crew members unreachable

10 crew members aboard one of the vessels are unreachable (Representative image)Two Turkish-flagged vessels collided off Istanbul in the Marmara Sea on Wednesday.Authorities have been unable to contact 10 crew members aboard one of the vessels, while there was no visible damage on the other vessel, the Istanbul governor's office said, as quoted by Reuters. Meanwhile, Coast guard ships and helicopters were dispatched ⁠to the scene ‌for search and ⁠rescue.(This is a breaking copy. More details awaited)