What happened

A Ukrainian drone strike ignited a massive fire at the Kavkaz oil and petroleum storage facility in Proletarsk, Rostov region, that regional officials struggled to contain for over a week — reports described it persisting for at least ten days, engulfing an area of roughly 10,000 square meters. More than 500 firefighters worked the blaze; Ukraine's military said its drones had targeted the storage site directly.

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.