A Lufthansa plane almost collided with a drone as it approached Warsaw international airport, Polish officials have revealed.
Warsaw airport spokesman Przemyslaw Przybylski said the incident occurred yesterday afternoon at around 4pm local time and the drone came within 300ft of the plane, which was arriving from Munich.
He said the near-collision occurred about three miles from the airport.
He added that police are investigating the incident to determine who operated the drone, which should not have been flying in that location.
Mikolaj Karpinski, of the Polish Air Navigation Services Agency, told the TVN24 broadcaster that the pilots immediately reported the drone to air traffic controllers, who redirected the plane.
Mr Karpinski said he considered the incident to be serious.