Two planes collided at Heathrow Airport, causing damage to their wings.
The incident involved a British Airways plane with 121 passengers on board and a Virgin Atlantic plane. Heathrow said there were no injuries and no delays.
Virgin Atlantic said its empty Boeing 787-9 was being towed from the stand at Terminal 3 when the collision happened, at about 12:00 BST.
The airline added that the plane had just landed and was being transported to a different part of the airfield.
British Airways said it provided an alternative aircraft for the customers on its plane.
Virgin Atlantic said it was investigating and that maintenance checks were being made on its aircraft, which has been taken out of service.
The tow movement was provided by a ground-handling company under contract by Virgin Atlantic, it said.
A Heathrow spokesperson said: "We are working alongside emergency services and our airline partners in response to an incident involving two aircraft on the ground earlier today."
The spokesperson added: "At present, no passenger injuries have been reported and we do not anticipate there to be any ongoing impact to airport operations."
Emergency services attended the scene as a precautionary measure.
The Met Police said it was supporting the airport authorities and the Air Accidents Investigation Branch with an investigation into the circumstances.
