CNN has obtained Russian radio transmissions that Ukrainian officials say provide further evidence that Russian superiors are ordering soldiers to execute Ukrainian prisoners of war in violation of international law.

Ukraine's National Guard said the attack took place while the men were carrying out exercises at a firing range.

A Russian missile attack on a Ukrainian military shooting range killed six servicemen and wounded at least 10 more during training on Tuesday, Ukraine's national guard said on Wednesday, adding that the commander of the unit had been suspended.

In a devastating missile strike, Russian forces have killed up to 70 Ukrainian soldiers at a special forces training camp near Shostka, in the Sumy region, located close to the Russian border. The attack,

The Russian leader traveled to the region in the west of the country where a surprise incursion last year embarrassed Moscow.

Ukrainian forces made a surprise incursion into Kursk in August 2024, before being pushed out by Russian troops nine months later.