TOWN OF LOCKPORT – A Robinson Road man was charged by state police troopers early Thursday with throwing a 2-year-old boy he was baby-sitting, and breaking the young boy’s arm.

Michael J. Zinck, 23, brought the injured child into a Lockport area hospital, according to state police. An investigation revealed he had been caring for the boy and threw him, breaking his arm, troopers said.

Zinck was charged with second-degree assault and endangering the welfare of a child. Town Judge Raymond Schilling sent him to the Niagara County Jail on $2,500 bail.

Child Protective Services and the County Sheriff’s Office also are involved in the case.