Three vehicles being chased by police eventually smashed into two houses and a storage shed in separate incidents across the Washington area yesterday.

One motorist was seriously injured, but no other injuries were reported in the chases. Two of them, in Maryland, involved speeds exceeding 100 mph. In the third, in Manassas, a vehicle damaged a gas meter, prompting precautionary evacuations.

About 12:30 a.m. yesterday, a Maryland state trooper tried to stop a car on Route 4 near Donnell Drive in Prince George's County. The trooper, part of an enforcement operation targeting driving under the influence, had spotted a possible equipment violation, police said. They said they later learned the car had been reported stolen.

The car fled at more than 110 mph, state police said. After police lost sight of it, it struck and damaged a house in the 4200 block of Lyons Street in Hillcrest Heights, police said.

They said the house would be boarded up until permanent repairs could be made.

In Charles County, a trooper tried to stop a car on Route 301 in Waldorf for possible traffic violations. A 20-mile chase ensued at speeds exceeding 100 mph and ended in Prince George's when the car crashed into a fence and storage shed at Brandywine Auto Parts near Routes 301 and 381, state police said.

In the third crash into a building, a chase sometime after 9 p.m. in the Manassas area ended in the 9300 block of Victoria Street, a spokesman for the Prince William County Fire and Rescue Department said.

Staff writer David Snyder contributed to this report.