(RNN) – A power outage that left Reagan National Airport in Washington completely in the dark was fixed less than two hours after it was first reported.
The airport said some flights may be delayed due to the outage in an 11:13 p.m. ET tweet that also revealed power had been restored.
The airport first tweeted it was "aware of an airport wide power outage" at 9:50 p.m. ET and said it was investigating.
Another tweet at 10:35 p.m. said backup generators were keeping "several areas of the terminal" lighted. Minutes later, it said flights were still operating.
Social media posts from inside the airport showed it shrouded in darkness, with little if any interior lighting functioning. Some passengers could not immediately deplane because the airport bridges use electricity, according to The Washington Post.
While there were reports of smoke related to the outage, the airport reassured patrons on Twitter there was no fire.
A spokesperson told WRC-TV in DC that the outage was related to an issue with the airport's energy provider, Dominion Energy. The cause has not yet been established.