What happened

RCMP said an ATCO electricity substation was deliberately shot and a bullet punctured an oil tank. The damage released about 20,000 litres of oil and interrupted power to more than 8,400 customers for almost five hours. Preliminary infrastructure and environmental-cleanup costs were estimated at about C$1.1 million. Police investigated the criminal act; the reviewed reporting established no ideological motive or connection to break-ins during the outage. The marker is approximate.

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.