Five employees of Rosatom (Rosatom State Nuclear Energy Corporation) were killed during the testing of a liquid jet propulsion system at a military testing range in Arkhangelsk Oblast of Russia, informed the communications department of this state-run corporation, Interfax reported.

Rosatom added that three others had sustained injuries and different-degree burns. They are currently in a specialized medical facility.

The state-run corporation also promised to help the families of the deceased.

The Russian Defense Ministry on Thursday had said that two people were killed and another six were injured in an explosion of a jet engine at the aforesaid military testing range.

“Two specialists have died of their injuries,” it had said. “Six representatives of the Defense Ministry and the developer have sustained various injuries as a result of the accident.”