A knife fight Tuesday left three people injured and police with conflicting stories about what happened.

Edward Dungee, 18, of 857 Spruce Ave., Sharon, suffered the severest injury when he was stabbed in the back, police said. He spent the night in UPMC Horizon, Farrell.

Edward Price, 18, of 1535 Parke Drive, Hermitage, was treated at the hospital for knife cuts on his leg and finger, and a 14-year-old boy was treated for a broken nose, police said.