MANTUA (AP) — Authorities say a South Jersey dad was stabbed in the stomach when he tried to intervene in a fight between his son and three other teenage boys.

Gloucester County prosecutors say 40-year-old John Trotter, of Mantua, was hospitalized in critical but stable condition. But his injuries are not considered life-threatening.

It wasn't clear what sparked the fight, which occurred early Friday afternoon at a home on the 100 block of Bridgeton Pike. Authorities say the three boys involved in the fight with Trotter's son — two 15-year-olds and a 16-year-old — fled the scene on foot after the stabbing, but were all captured a short time later.

The three juveniles are charged with attempted murder, aggravated assault and weapons offenses. Authorities believe the 16-year-old boy stabbed Trotter.

(Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed)