Thousands of people across Northern Virginia woke up without electricity Tuesday morning after a transmission line problem occurred.

At the height of the outage, nearly 30,000 customers affected across Fairfax and Loudoun counties were affected.

The outage caused traffic signals along the U.S. Route 50 corridor to go dark between South Riding and Greenbriar, but had been restored by 7 a.m. according to WTOP listeners.

Most of the power was back on by 10:30 a.m.

Here is the map of Virginia power outages.

Below is a map of current outages in the D.C. region: