If the attack had been carried out, it would have caused a large-scale fire while around 70 employees were in the facility, the police authority announced on social media.
Three foreigners have been arrested, one of them in Germany, after police received information from Slovakia's intelligence services. They also allegedly found a large quantity of flammable liquid and a hand-drawn plan.
The facility is located in the city of Presov in eastern Slovakia and belongs to the Ukrainian company Skyeton, which manufactures drones for the Ukrainian army, according to the newspaper Denník N. It is described as the first known attempt of its kind on Slovak soil.
