The lights are back on in downtown Washington, DC after a Friday morning power outage.

"Basically, we've got everybody restored," Pepco spokesman Robert Dobkin said.

A huge power outage and subway fire left parts of DC in the dark causing problems during the morning commute. Due to the subway fire, Washington Metropolitan Area Transit Authority riders could experience delays of up to one hour.

The White House was even running on back-up generators, but the Department of Homeland Security said there was no threat of terrorism.

Pepco and WMATA said they did not know if the power outage and the fire were related.