Ukrainian intelligence has preliminary information on which military unit the two Ukrainian soldiers who were shot by the Russians might have been from when they surrendered. This was reported by the Verkhovna Rada Commissioner for Human Rights Dmytro Lubinets to a journalist of UNN.
I cannot speak about this publicly, but, according to my information, Ukrainian intelligence already has preliminary information about who it could be, from which military unit,
In addition, he said that there has been no response from the Red Cross and the UN regarding the killing of two Ukrainian soldiers who surrendered to Russian forces.
Addendum
Lubinets appealed to the Red Cross and the UN Monitoring Mission after the killing of two Ukrainian soldiers.
On December 2, a video of Russians killing unarmed Ukrainian soldiers who were surrendering appeared online. This is a war crime in violation of the Geneva Conventions, and requires the Red Cross and the UN to take action.
The next day, the Ukrainian Armed Forces' StratCom confirmed the war crime.