What happened

A long-range drone struck the Gazprom Neftekhim Salavat refining and petrochemical complex in Bashkortostan, about 1,300km from Ukrainian-controlled territory. Regional governor Radiy Khabirov confirmed damage and a fire at the site; Ukraine's Security Service claimed the operation. Contemporary reporting placed the fire near a catalytic-cracking installation, but did not establish a sustained refinery-wide production halt or casualties.

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.