A passenger plane believed to have been struck as it approached London's Heathrow airport is now not thought to have been hit by a drone, the British government has said.
Police launched a search for suspects and debris in Richmond, south-west London.
Transport Secretary Patrick McLoughlin told MPs this morning that it is now thought the incident did not involve a drone.
An investigation launched by the Air Accidents Investigation Branch (AAIB) has been closed due to lack of evidence.
A spokesman for the AAIB said: "We made initial inquiries but there was insufficient information on what object was involved for us to take it further."