The Yale University Humanitarian Research Lab says it has documented 223 incidents of damage to Ukraine’s electric power infrastructure between October 2022 and April 2023. In most of these incidents, the damaged infrastructure was far from the front line, calling into question whether the strikes were directed at legitimate military objectives, the research lab said on March 4. The pattern of attacks "indicates widespread and targeted efforts to cripple vital power generation" during cold-weather months. The findings are consistent with those previously reported by the Conflict Observatory, a U.S. State Department-supported consortium that documents war crimes and atrocities.