A grenade was blown up in the office of the ultranationalist "Right Sector" organization in Kiev on 3 September.
As the Ukrainian channel "112 Ukraine" reports, "the explosion took place at about 3.30 a.m. A grenade was thrown in the "Right Sector" office, which is on the ground floor of an apartment house."
According to the report, four unknown people on a car with Kiev numberplate have been already detained.
"The police dealt swiftly with the situation, seized and detained them. However, nothing is reported about their involvement in the organization. There were no injured," the channel said.
Also read: 'Right sector' to break into Europe
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