Human Rights Watch (HRW) has called for an investigation into footage appearing to show that as many as 21 Ukrainian troops had been executed as, or after, they surrendered to Russian forces, and urged that those responsible be punished for war crimes. The group said in a statement that drone footage posted on social media appeared to show 15 Ukrainian soldiers being killed as they attempted to surrender, while six others were possibly shot dead as they were surrendering or had already surrendered. HRW said the footage posted in December and February do not appear to be isolated incidents.