NATO fighter jets shot down multiple Russian drones that violated Polish airspace during an attack on neighboring Ukraine early on Wednesday, as the military alliance denounced Moscow for “absolutely dangerous” behavior that ratcheted up tensions to a new level.

WARSAW, Poland (AP) — Poland said Wednesday that multiple Russian drones entered its territory over the course of several hours and were shot down with help from NATO allies, describing the incursion as an “act of aggression” carried out during a wave of Russian strikes on Ukraine.

Polish and NATO forces intercepted and shot down several Russian drones that crossed in Polish territory, with some world leaders calling it a dangerous escalation in Russian aggression across Europe.

Farmers, builders and police officers use drones made by DJI, a Chinese company. President Trump and his allies want to stop all imports.

Drones which will be used by the Ukrainian military are due to be built as part of a £200m investment in the UK, creating 500 jobs. Ukrspecsystems, described as the biggest drone manufacturing company in Ukraine, will use an existing building in Mildenhall, Suffolk, to produce the unmanned aircraft.

Portland police will begin to send drones as first responders to emergencies in a pilot program that officials say could help improve their ability to address crime.

Ukraine wants to see improved performance by interceptor drones to counter Russian aerial attacks more effectively, the country's top commander said on Thursday.

The River Blackwater Catchment Trust (RBCT) is trialling a set of surveillance drones patrolling the Slieve Beagh peatland, after the northern section was destroyed in a wildfire started deliberately in May.