Four juveniles are accused of shooting 26 students at an Ocean County school with beads from a high-powered water gun during gym class, police said Wednesday. The incident happened at Toms River Intermediate School South on Pinewald Road in Beachwood on Monday, according to local police. Officers were called to the school around 2:30 p.m., police said. The students who were struck were examined by the school’s nurse and determined not to be seriously injured. The students were immediately returned inside following the shooting, police said. The minors used Orbeez guns, which shoot hydrated bea…