WASHINGTON (AP) -- The National Weather Service says it has had multiple reports of structural damage caused by hail, heavy rain and strong winds in two Virginia counties.

In Prince George County, authorities tell 13News there are reports of trees down.

Meteorologists would not confirm reports of tornado sightings, but said they would assess the damage Friday.

The Weather Service reported trees down and structural damage in southern Stafford County.

Stafford Fire and Rescue spokesman Lieutenant Mark Stone told The Free Lance-Star of Fredericksburg that between 50 to 60 homes in the England Run North subdivision area.

Pieces of roofs and walls were strewn about the streets. No homes were leveled, but clothes hanging in closets could be seen from the street in some of them.

Dozens of residents were taken to a temporary shelter at Gayle Middle School.

There were reports of minor injuries, but no one was taken to the hospital.

Firefighters went door-to-door checking on residents and a shelter was opened for those whose homes were damaged.

There were unconfirmed reports of a tornado in the Triangle area in Prince William County.

Video: VIDEO: Stafford Co. kennel damaged

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Portions of northern and central Virginia and southern Maryland were under a flood warning Friday morning. The Weather Service said excessive runoff from heavy rainfall was causing elevated levels in small creeks and streams and ponding of water on roads.

At 6:15 a.m. Friday, the major utilities in the Washington, D.C., region reported nearly 12,000 homes and businesses were without power. That number included about 700 in northern Virginia, 3,000 in D.C., and nearly 8,000 in central Maryland.

Flooding on railroad tracks forced disruptions and delays for commuters using MARC. The Penn Line service terminated at New Carrollton, Md.

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