An attempted copper theft at an Energex substation in southeast Queensland caused a widespread power outage affecting approximately 13,000 customers overnight. The incident involved someone breaking into a cable pit and attempting to cut an 11,000-volt cable. Energex is investigating the incident and working to restore power to affected areas. Authorities believe the perpetrator was attempting to steal the copper wiring for resale. The outage highlights the risks of metal theft and its impact on critical infrastructure. No injuries were reported as a result of the incident, but the disruption caused significant inconvenience to residents and businesses. Energex has not provided an estimated time for full power restoration.