The Security Service seized 4 terrorists in Kyiv during the terrorist act, SBU press service reports Sept. 3.
The leader of the group is a Russian, the other 3 are Ukrainians.
The terrorists were captured outside an office collecting help to Ukraine army servicemen in Donbas. They managed to blow a grenade near the office. The SBU agents had to open fire and wounded one of the terrorists.
The group had weapons, ammunition and explosives.
They also had a car with faked license number.
After the act the group leader intended to flee to Crimea, SBU says.