Censor.NET reports citing the statement by the anti-terrorist operation (ATO) Staff press center.
"Attention! A serviceman of one of our units committed a grave crime. He eventually joined the enemy amid hopes to avoid prosecution!" the report reads.
A source told Censor.NET that a soldier of the 93rd Brigade was killed as a result of the incident.
Earlier, The Security Service of Ukraine (SBU) arrested two deserters at the border with Crimea who joined the Russian army after it had occupied the peninsula.
According to the SBU, Oleksandr Baranov and Maksym Odyntsov served in the Naval Forces of Ukraine before the occupation of Crimea. They breached the oath after the annexation of the peninsula and joined the army of the Russian Federation. The prosecutor's office suspects Odyntsov and Baranov of desertion.