Authorities fear a dry cargo ship has sunk after a collision, with its crew unreachable

Ankara: A cargo ship sank in the Marmara Sea near Istanbul after colliding with a second vessel, with rescuers now hunting 10 people who were on board, Turkey's maritime authorities said Wednesday.
"Due to the Tugberk İmamoglu ship not responding to any calls and the crew not answering their mobile phones... it is believed the dry cargo ship has sunk," the maritime directorate said after the collision at 3:15 am (0015 GMT).