Ukrainian President Petro Poroshenko has condemned the attack on the Polish general consulate in Lutsk, Volyn region, presidential press officer Svyatoslav Tsegolko said.

"The president strongly condemned the attack on the Polish general consulate in Lutsk. And he ordered the law enforcement agencies to urgently take all measures to investigate this incident and determine those guilty," Tsegolko said on Facebook on Wednesday.

According to earlier reports, unknown individuals opened fire on the building of the general consulate of Poland in Lutsk in the early hours of March 29. According to media reports, an RPG grenade launcher was presumably used in the attack. The shots hit the window of the upper floor, making a hole in the roof and breaking the windows.

There were few people in the building at the time of the explosion, and therefore no one was hurt, although security guards were located on the lower floor.

The Security Service of Ukraine said the investigators are considering a terrorist attack among the theories of the explosion in the building of the Polish general consulate in Lutsk and "Russia is the only one that stands to gain from such provocations."

Ukrainian Foreign Minister Pavlo Klimkin said he is outraged by the provocation against the Polish general consulate in Lutsk.

The press service for the Polish Foreign Ministry, for its part, said on Wednesday morning that Ukrainian Ambassador to Poland Andriy Deschytsia had been summoned to the Polish Foreign Ministry regarding the incident. Additionally, it was reported that the Polish diplomatic mission in Kyiv will hand over a note of protest to the Ukrainian Foreign Ministry.