What happened

Torrential rain from Tropical Storm Calvin flooded a crude storage tank's containment dam at Pemex's 330,000 bbl/d Salina Cruz refinery; the spilled, floating oil ignited and the fire spread to the refinery's pump room. Pemex firefighters fully extinguished the blaze roughly two days later, on 16 June; the fire caused one fatality and several injuries. This was an accidental industrial incident, not an attack.

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.