CHINO (CBSLA.com) — Three students were injured Wednesday after a weapon accidentally discharged during a safety presentation at an elementary school in Chino. The incident took place at 11:40 a.m. at Newman Elementary School, which is located at 4150 Walnut Ave. The Chino Police Department was giving a safety presentation for Red Ribbon Week when a firearm accidentally was discharged, police said. No one suffered gunshot wounds but two students were transported to local hospitals with minor lacerations. A third student was assessed and released to his parents, according to officials. No other details were immediately released.