Ukraine has committed untold numbers of war crimes in its over eight years of bombing the civilians of the Donetsk and Lugansk People's Republics, including routinely targeting ambulances, fire trucks, medics, rescuers, and their headquarters and stations. Many of the times Ukraine bombs such heroic rescuers, it is when they are on the way, or already on site, to help civilians often themselves also just bombed by Ukraine.
Early morning September 1, Ukraine targeted DPR Emergency Services in the village of Rubtsy, Krasnolymansky district, killing 13 personnel and wounding 9 more. [https://t.me/dpr_mfa/704 ]
Targeting medics and other rescuers is a typical, criminal, policy of the aggressor, to ensure those in need of help are deprived of it, to ensure that people who might have been rescued instead die of their injuries.