The Security Service of Ukraine (SBU) said this in a statement seen by Ukrinform.

According to the case files, Ukrainian defenders captured the men during fighting in the Pokrovsk, Kramatorsk and Siversk sectors.

Seven of those sentenced are residents of the temporarily occupied part of the Donetsk region who, at various times, voluntarily joined the 1st, 5th, 100th, 114th and 132nd motor rifle brigades of the aggressor country's army.

Among them were riflemen, a flamethrower operator and a driver who took part in "meat grinder" assaults on Ukrainian Armed Forces positions near Pokrovsk.

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Two residents of the Luhansk region were also sentenced to prison terms after signing contracts with Russia's 7th Motor Rifle Brigade. One served as a driver and the other as a rifleman.

"Serving in the ranks of the Russian forces, the traitors fought in the Sievierodonetsk area and built fortifications near Lysychansk. They were later redeployed to the Siversk sector to attack Ukrainian defense forces, where they were captured," the SBU said.

Another convict is a native of Crimea who joined Russian armed groups and was assigned to serve as a rifleman in the 72nd Motor Rifle Brigade.

After joining the Russian army, the man took part in fighting near Svitlodarsk. He was later ordered to attack Ukrainian Armed Forces positions near Kostiantynivka, where he was captured.

Based on the SBU's evidence, the court found all ten men guilty under Parts 1 and 2 of Article 111 (high treason) and Part 7 of Article 111-1 (collaboration) of Ukraine's Criminal Code.