A search operation is underway to find two people still missing after a Tunisian passenger plane made an emergency sea landing yesterday killing thirteen people onboard. Two children are among the dead. The aircraft operated by a subsidiary of Tunisair was carrying 38 people mostly young Italian tourists. The twin-engine plane was on its way from southern Italy to the Tunisian tourist resort of Djerba. The pilot asked to make an emergency landing in Sicily, survivors of the crash say he lost power and came down in the sea. Search and rescue operations went on into the night. So far, the French-made plane’s black boxes have not been found.Floats were placed under the aircraft’s fuselage and it has been towed to the Sicilian port of Palermo. The survivors were taken to a hospital in Palermo – 11 are in a critical condition though their injuries are apparently not life-threatening. A joint Tunisian, Italian and French investigation is underway to find out exactly what caused the plane to crash.