GLOUCESTER TOWNSHIP, N.J. - A multi-vehicle crash left four people, including a New Jersey state trooper, injured on a Camden County highway Sunday night.Traffic came to a standstill when the crash unfolded southbound on Rout 42 nearly mile 8 in Gloucester Township around 8:30 p.m.Officials say multiple cars collided, however the number of vehicles involved in the crash has not been released.MORE HEADLINES:A New Jersey state trooper, along with three other people, were injured, according to officials.Three people were transported to a local hospital.