The company intends to attract international experts to assess the causes of the fire. At this, according to the director of the strategic marketing department of BRSM-Nafta network, Alexander Melnychuk.

"Our company announces a reward for information about the attack on the Vasylkiv oil depot ... We have to appeal to international experts [to carry out an investigation]," Melnychuk said at a press conference on Friday.

He noted that the incident at the oil depot was preceded by seven terrorist threats at a gas stations and other facilities of the company, during which explosive devices were found.

At the same time the company representative said that the Ukrainian law enforcement bodies did not carry out a proper investigation into previous threats of terrorist attacks, so the company would have to appeal to international experts for help.