The Turkish-flagged commercial vessel ALSU remains anchored in the Sea of Marmara off the coast of Silivri, Istanbul, Turkey, on September 13, 2026. Two Turkish-flagged commercial ships collided off the coast of Istanbul's Silivri district early Wednesday, with maritime authorities saying one of the vessels is believed to have sunk after contact was lost with the ship and its 10 crew members. Photo: VCG