An airline pilot suffered a heart attack just minutes before he was about to take off from Glasgow airport.
The Dutch captain of the KLM flight to Amsterdam became unwell as he taxied to the runway.
Firefighters from Glasgow Airport helped take the Dutch pilot off the plane.
He was met by ambulance crews and taken to hospital.
The co-pilot of the plane, which had 128 people on board, took the aircraft back to the gate.
The flight was supposed to leave at around 5pm, but because of the emergency it was cancelled. Passengers on board had their flights re-booked.
A spokeswoman for KLM said: “During taxiing to the runway on this KLM flight to Amsterdam the captain became unwell and the staff treated him with the help of a passenger.
“He was taken to hospital where his condition is stable.”