Syracuse police have arrested a man after he allegedly cut a baby with a knife while trying to attack his ex's new boyfriend.

Police were told that Kevin Davis approached his ex-girlfriend's car at a red light on Madison Street Wednesday, reached in, and began swinging a knife.

A 1-year-old was cut on the left side of his face.

Two other children ages 11 and 8 were also in the car.

Davis is charged with assault, criminal possession of a weapon, menacing, and endangering the welfare of a child.