More and more records of incidents involving drones on the perimeter of the airport Humberto Delgado in Lisbon.

The last one took place on Wednesday and involved an aircraft of the Portuguese Air Force. According to the Express military aircraft was about to land on runway 35 Portela when a drone went about three meters from the apparatus. The collision was narrowly averted. The military unit was taken off the air base 4 on Terceira Island in the Azores. The report states that the plane was about to touch the ground with the landing gear when crossed with the drone.

This Friday the target of one of these small flying devices was a TAP plane. The incident occurred during landing in Lisbon when a laser beam fired from a drone penetrated the cockpit hit the co-pilot in the eye. The crew reported pain in her left eye several hours. The apparatus of the national carrier came from Rome in Italy, and was carrying 150 passengers.

The cases are different and increasingly frequent. In April this year, there was another instance at Lisbon airport involving an airliner coming from Madrid. It was in 2014 that the first cases involving unmanned aerial vehicles along the tracks from Lisbon airport were reported.

These events merited the attention of the National Institute of Civil Aviation, but still lacks specific legislation regulating the use of drones.