Authorities and volunteers search for a flood victim in Charlotte County, Va. (Steve Helber/AP)

Search teams in southern Virginia’s Charlotte County have recovered the body of a woman who was swept away Thursday night in a flash flood caused by rain from the remnants of Hurricane Michael, authorities said.

Ruby S. Allen, 62, of Eureka, Va., was riding in a car with her son and grandson about 11:20 p.m., when a 911 caller reported seeing the vehicle overcome by a flooded creek, said Daniel Witt, Charlotte County administrator.

Charlotte County sheriff’s deputies responded to the scene and found the woman’s 17-year-old grandson in the water clinging to a guardrail, Witt said. Deputies and bystanders rescued the teen, but his father and grandmother had been swept away.

The body of the father, Ronnie Allen Jr., 36, of Eureka was recovered later.

Witt said the grandmother’s body was found about 11:30 a.m. Saturday, a mile from where the car went off the road.

The recovery of the woman’s body brings the death toll from the storm to six in Virginia. Three others died in floodwaters, and a firefighter was struck and killed by a tractor-trailer as he and others responded to a crash on Interstate 295.

Michael caused widespread power outages, downed trees and power lines and damaged buildings in a wide swath of southern and central Virginia on Thursday night and Friday morning.