Ukraine's Foreign Ministry representative, Yevhen Perebiynis, has accused Russia of involvement in organizing terrorist attacks on Ukrainian cities.

According to Perebiynis, Russia “makes every effort to undermine Ukrainian stability,” up to and including the organization of terrorist attacks outside the warzone in east.

On February 22, a bomb exploded in Kharkov at a ceremony to commemorate the anniversary the Maidan revolution. According to local police, an antipersonnel mine with the capacity of two kilograms (about 4.4 pounds) of TNT was planted along the path of the demonstrators. The blast killed four people—two perished at the scene and another two died later in the hospital. Almost immediately after the bombing, the Security Service of Ukraine arrested four suspects, who claimed to have received their explosives from Russia.

On February 23, Ukraine’s Interior Ministry announced that it had prevented a terrorist attack in Mariupol. Police say they were fired upon after stopping a suspicious vehicle. As a result, three officers were seriously injured, one of whom later died. Police returned fire, killing one of the people in the car, while the other managed to escape. Afterwards, a bag of explosives was discovered in the car.

On January 19, a bomb exploded in a courthouse in Kharkov, injuring 14 people.

Last November, bombers attacked a pub in Kharkov that was involved in helping refugees from eastern Ukraine and collecting aid for volunteer militia fighting against separatists. The blast injured 11 people.