Two Britons and a Moroccan were sentenced to death by firing squad Thursday by Russian-backed separatists in eastern Ukraine for fighting on Ukraine’s side.

The Supreme Court in the self-proclaimed Donetsk People’s Republic found the  men guilty of working toward a violent overthrow of power, an offense punishable by death in the republic recognized only by Russia – and only days before the invasion in February. They men were also convicted of mercenary activities and terrorism.

Aiden Aslin, Shaun Pinner and Saaudun Brahim have a month to appeal.

“The guilty verdict is based on the evidence provided by the prosecution, not counting the defendants’ pleading guilty on all counts,” Judge Alexander Nikulin told reporters.

Prosecutors claimed that the three fighters are “mercenaries” who are not entitled to protections afforded prisoners of war. Aslin and Pinner’s families said the men have lived in Ukraine since 2018 and were “long-serving” members of the Ukrainian military.

Pinner and Aslin surrendered to pro-Russian forces in the southern port of Mariupol in mid-April, while Brahim did so in mid-March in the eastern city of Volnovakha.

British Foreign Secretary Liz Truss called the decision a “sham judgment with absolutely no legitimacy.”

“I utterly condemn the sentencing of Aiden Aslin and Shaun Pinner held by Russian proxies in eastern Ukraine. They are prisoners of war,” she said in a statement. “My thoughts are with the families. We continue to do everything we can to support them.”

Another British fighter captured by the pro-Russian forces, Andrew Hill, is awaiting trial.

USA TODAY ON TELEGRAM: Join our Russia-Ukraine war channel to receive updates straight to your phone

Latest developments:

►A resolution urging NATO to quickly admit Finland and Sweden won easy passage in the U.S. Senate Foreign Relations Committee on Thursday. Turkey has stalled the applications, saying it objects to the two countries’ stances regarding some Kurdish groups the Turks have labeled terrorists.

►Russians occupying the southeastern city of Melitopol are looking for freezers and industrial refrigerators after the city meat-packing plant, converted into a morgue, filled with Russian bodies. This week the firm Aron-M LLC said it was told its refrigerators would be used “free of charge for the preservation of the bodies of fallen servicemen.”

►Senior members of the European Union’s parliament are urging EU leaders to make Ukraine and neighboring Moldova official candidates for joining the 27-nation bloc. The parliament in recent years had balked at Ukraine’s candidacy, citing rampant corruption.