ANKARA — A Turkish fishing boat capsized on Wednesday after colliding with a Greek-flagged tanker off Turkey’s Mediterranean coast, officials said. Four people on board the boat were killed while one other person is reported missing.

The incident between the Polatbey fishing boat and the Greek-flagged Ephesus occurred at dawn, about 15 nautical miles off the coast of Karatas, in Adana province, the Turkish coast guard said.

A search-and-rescue operation involving three coast guard boats and a team of divers was launched shortly after communications with the boat was lost.

The coast guards later recovered four bodies and was still searching for a fifth person, the Adana governor's office said in a statement.

The cause of the incident wasn't immediately known.

FM extends condolences over deaths in collision of Greek-flagged ship and Turkish fishing boat

The Greek foreign ministry on Wednesday extended its condolences to the families of the victims following the tragic collision of a Turkish fishing boat and a Greek-flagged tanker in the Aegean earlier the same morning, which resulted in the deaths of four fishermen, while a fifth is still missing.

"Following the tragic incident between a ship under Greek flag and a Turkish fishing vessel earlier today, we deplore the loss of human lives & extend our condolences to the bereaved families" the Greek Foreign Ministry posted on Twitter.