Three Alexandria firefighters responding to a kitchen fire suffered minor injuries last night when their fire engine ran off Duke Street, plunged down an embankment and into a creek.

Shortly after the truck accident near Cameron Station, a battalion fire chief, driving a car to the same fire, was involved in a collision.

The fire truck was declared a total loss, and damage to it assessed at $100,000. Damage to the chief's car was put at $3,000.

Other firefighters were sent to 4600 Duke St. to combat the fire in the kitchen, which reportedly was confined to food on a stove. It was extinguished with little difficulty.

The cause of the fire truck accident, which occurred in rain at about 7:15 p.m. as the truck was coming from a station at North Paxton Street, was not immediately known.

In an unrelated traffic incident, a 13-year-old Northwest Washington youth, who started the unoccupied car of a family friend, collided with seven parked cars within a few blocks of his home in the Shaw area last night before striking an eighth and coming to a halt, D.C. police reported.

They said no injuries were reported in the 9 p.m. incident, but damage to the cars was estimated about $6,000.

Police said the youth, who was not identified, was ticketed for driving without a permit and for colliding.