This was reported on the Facebook page of the Navy APU.
The report said that "there was a tragic case of the death of a soldier."
The publication “Dumskaya”, citing sources in law enforcement agencies, reports that the Marine died at the hands of a colleague.
“According to the investigation, sailor S., being in a daily dress at a checkpoint on the territory of a military unit, fired one shot from a Kalashnikov assault rifle in the direction of his colleague - sailor K. The last died on the spot from a head wound,” the message says.
It is noted that both servicemen were sober. A criminal case has been opened under the article “Intentional murder”.
In February 2018, it was reported that the Ukrainian marines shot four colleagues in the Donbass.