Updated

Police in Virginia say a woman has been killed when a tree fell onto her home and they're responding to reports of other injuries stemming from storms that ravaged the mid-Atlantic region.

Fairfax County police spokeswoman Mary Ann Jennings says the woman was killed in the Springfield area during the height of the storm Friday night.

Jennings says authorities elsewhere in the county were responding to reports of a park police officer whose car was hit by a tree and an 18-year-old man struck by a power line.

The wave of violent storms knocked out power to nearly 2 million people in Washington, D.C., Maryland, Virginia and West Virginia. It came after a day of sweltering heat, including a record-setting 104 degree reading in Washington, D.C.