A plane from Austrian Airlines must land early. The plane flies from Tel Aviv to Vienna. On Sunday night, a bomb threat happens. The pilots decide to land in Sofia. Sofia is the capital city of Bulgaria. There are 51 passengers and 6 crew members on board. All people leave the plane safely.
The air force from Bulgaria flies next to the plane with a jet. The plane is an Airbus A320. The pilot sends a signal for help. Experts look for bombs in the plane in Sofia. Passengers get new flights very fast. A crisis team helps now. The police start an investigation.
Reports say a man from Austria gives the warning. He is not on the plane. In the last weeks, many flights to Israel have problems. One pilot attacks his captain. Another time, people think a plane is stolen by bad men. Safety for all people is the most important rule for airlines.