VIRGINIA BEACH, Va. (AP) _ An armed man smashed his pickup truck into what he thought was his former girlfriend's townhouse Wednesday only to find he had hit the house next door, then was wounded by a shotgun blast, police said.

The man, Dennis Wayne Bell, 34, of Virginia Beach, then broke into his ex- girlfriend's house, fired a shot at her new boyfriend but missed and was seriously wounded by return fire, said Sgt. Danny Kappers, a police spokesman.

At about 12:15 a.m., Bell called his former girlfriend, Cathy Owens, and said he was coming over to kill her new boyfriend, authorities said.

''About 10 minutes later, Bell drives his pickup truck through the front wall of a townhouse into the living room; discovering he's driven through the wrong wall of the wrong townhouse, gets out of the pickup truck and goes next door,'' Kappers said.

Bell tried unsuccessfully to shoot the lock off the front door with his .45-caliber handgun, then kicked down the door and fired at the boyfriend, Jon Christopher Tull, Kappers said.

Tull, waiting for Bell with a shotgun, fired once and wounded Bell in the head, chest and stomach, Kappers said. Bell was listed in serious condition at Norfolk General Hospital.

No charges have been placed against Tull, and charges against Bell are pending, Kappers said.

Police estimated damage to the neighbor's townhouse at $30,000. No one there was injured.