This was reported in the press service of the enterprise.

“At the Orsk Oil Refinery’s hydrotreatment unit during preparatory repair work, three workers of the plant and four workers of the contractor were poisoned,” the representative of the TASS plant quotes.

Doctors provide the victims with all the necessary assistance.

Earlier it was reported that three people were poisoned by an unidentified substance on the territory of a sugar factory in the Krasnodar Territory.