Virginia authorities are providing more details about the death of a firefighter who was responding to a crash north of Richmond as Michael lashed the state.

The Hanover County Fire-EMS Department says Fire Lt. Brad Clark died at the scene when a tractor-trailer struck his fire engine at the scene of a two-vehicle crash around 9 p.m. Thursday.

The department said that the fire engine had its lights and other emergency equipment activated, but roads were slick and the storm conditions were heavy. The state medical examiner's office has ruled Clark's death among five storm-related fatalities in the state.

Authorities say two others in his crew were seriously injured. The truck driver had to be extricated and also suffered serious injuries.

With four other deaths confirmed in Virginia, the overall official death toll from Hurricane Michael is up to 11.

Michael's final effects are now wind and flash flooding in Maryland, Delaware, Virginia, and North Carolina.

The damage could end up totaling to over $10 billion.

(The Associated Press contributed to this report.)