A suspected copper wire theft at an NV Energy Substation is believed to be the cause of a power outage in the Las Vegas valley.

An attempted copper wire theft at an energy substation caused a temporary power outage on Monday, according to NV Energy. The outage began at about 3:15 p.m. and affected 12 customers at its peak, the company said.

An outage that affected approximately 12 customers began around 3:15 p.m. today, with NV Energy reporting that all but one customer had power restored by 6:15 p

Nearly 2,000 customers have no power Wednesday morning while NV Energy investigates an outage near downtown Las Vegas.