UPDATE AT 6:50 AM: A check of NV Energy's website revealed that power has been restored to all but 11 customers. The exact cause of the outage is still unknown.
More than 15,300 customers are currently without power in the area close to Boulder Highway and South Nellis Boulevard.
There are two zip codes that are affected: 89121 (3,787 customers) and 8912 (11,443 customers).
According to NV Energy's website, there is a problem with the equipment in the area. Estimated time of restoral is 7 to 8 a.m.
The power outage began at approximately 5:15 a.m.
This is a developing story. Check back for updates.