The head of Ukraine's military intelligence said Friday that the drone attack on Pskov airport in the early hours of Wednesday was carried out from Russian territory. In the attack four Russian IL-76 military transport planes were hit, two of them destroyed and the other two badly damaged. Moscow Mayor Sergei Sobyanin said his air defense had intercepted a drone heading to the capital without causing damage or casualties. Two Ukrainian drones have attacked early in the Russian town of Kurchatov, home to a nuclear power plant in the Kursk region.