Thousands of area residents are still without power after thunderstorms crossed the region Sunday, knocking down trees and wires.

As of about 9:45 a.m. Monday, Pepco reported more than 230,000 homes without power. The vast majority are in Montgomery County, where more than 173,000 homes still lack power.

Dominion recorded nearly 12,000 homes without power in northern Virginia on Monday morning.

About 270 traffic signals in Montgomery were without power, according to a Montgomery County alert, and 20 lacked power in the District.

Mandatory water restrictions are still in effect for Washington Suburban Sanitary Commission customers in Montgomery and Prince George’s counties.

At least two deaths were reported during Sunday’s storm. A woman was killed in Beltsville when a tree fell on her minivan, and a 6-year-old boy died in Loudoun County after a tree fell on him.