DAGSBORO, Del. – The Delaware Office of the State Fire Marshal is investigating a commercial structure fire that happened Tuesday afternoon.

It happened in the 28000 block of Quarter Mile Drive in Dagsboro shortly after 3:30 p.m.

When crews arrived they found a commercial vehicle repair garage with fire and smoke showing.

All occupants were able to escape without injury.

The fire was determined to be accidental and occurred when gasoline vapors ignited during a vehicle repair operation in the interior of the garage.

Damage is estimated around $800,000 dollars.

No reported injuries.