ATHENS (AP) — Greek authorities say three people, including two small boys, have died after a boat carrying migrants from Turkey foundered overnight off the island of Samos.

The coast guard says it launched an air and sea search off the eastern Aegean Sea island after receiving a distress call late Wednesday. Rescuers found 11 people in the sea shortly later, including the two boys who died on the way to a hospital.

The survivors reported that a man was also missing from the small boat that had been carrying them to Samos. A body found early Thursday close to shore was believed to be his.

The ages and nationalities of the dead and survivors were not immediately known.

It was unclear what caused the boat to sink in good weather conditions.