MILAN, Italy?An SAS airliner slammed into a private jet during takeoff, then swerved into an airport building and burst into flames, killing all 114 people on both planes Monday, officials said.

The Interior Ministry ruled out terrorism and said the crash was most likely the result of human error and poor visibility from the heavy morning fog at Milan?s Linate airport.

The small jet, a Cessna carrying four people, entered the takeoff runway by mistake after air traffic control directed it to taxi to a different runway, the Interior Ministry said in a written statement.

The SAS plane, carrying 110 people and full tanks of fuel, was accelerating for takeoff when it hit the twin-engine Cessna Citation II, which had taxied onto the takeoff runway, said Alessandra Tripodi, a spokeswoman at the central government?s office in Milan.