TWIN FALLS - More than 13,000 customers were in the dark Tuesday evening due to a major power outage affecting a large portion of the city.

Idaho Power said the outage was unexpected, and that it had crews on-site working to fix the problem. By 10:45 p.m., power had been restored to most customers.

At this point, there is no word on what caused the outage.

Another outage was also reported southwest of Wendell Tuesday evening. Approximately 1,500 customers were affected, according to Idaho Power's Outage Center website.

By Wednesday morning, power had been restored to all the affected areas.