AKRON, Ohio (AP) _ A man's fast action with a crowbar saved a pregnant teen-ager and a 10- year-old boy from an attacking pit bull dog, officials said.

The city prosecutor's office Wednesday was investigating, said Prosecutor Gary Rosen.

The victims were treated Tuesday at Akron Children's Hospital-Medical Center and released.

James Dolan, 35, was remodeling a rental home he owns Tuesday afternoon when he heard a cry for help. He grabbed a crowbar and ran to the sound of the cry, where he saw that the dog had bitten the boy, Frank Konkle, on both arms and upper back.

''I was yelling at the top of my lungs, trying to get the dog's attention,'' Dolan said. ''I swung at him and missed. He went around me; went right for Stacie.''

Stacie Landis, seven months pregnant, was standing in the driveway when the 50-pound dog attacked her, police said. A second dog, a German shepherd and collie mix, also attacked her.

Stacie, 17, said she fell to the ground after the pit bull grabbed her right arm.

''I tried wrapping my hands around my stomach to protect my baby,'' she said. The pit bull, she said, let go when it saw Dolan approach.

''I hit that pit bull as hard as I could right between the eyes with the crowbar,'' Dolan said. ''That crowbar rang like a bell.''

Dolan said the mixed-breed dog backed away, but the pit bull charged a second time. Dolan said he threw large rocks, hitting the pit bull in the jaw and shoulder to drive it off.

Police and animal wardens apprehended the two dogs plus another pit bull outside in the neighborhood. All three dogs were being held Wednesday at the Summit County Animal Shelter.

Police said all three dogs belong to Dan Domestis, who was not home when the attack occurred. Domestis said the incident was the first time his 2-year- old male pit bull named Roman has attacked anyone.

''I don't know why it happened. It's hard to believe. I never knew Roman to bite anybody,'' Domestis said.

City Council last summer passed a law requiring that dangerous dogs be securely penned. First-time offenders can be fined $1,000 and jailed for six months.