What happened

Russian forces shelled Ukraine's second-largest oil refinery at Lysychansk, sparking a fire covering about 5,000 square meters; further shelling in May 2022 damaged production areas while persistent artillery fire hindered firefighting. Lysychansk, the last city in Luhansk region to fall, was captured by Russian and Luhansk militia forces in early July 2022 after a prolonged battle — the refinery was under Ukrainian government control at the time of this strike but has since been in Russian-occupied territory.

When cited sources give different casualty, damage or spill figures for this event, they’re reported side by side above rather than merged into one number. See how confidence levels work.