One person was confirmed dead an early morning single-vehicle crash in Oldmans Township, State Police spokeswoman Brandi Slota said. Authorities have not released the identity of the person killed in the Salem County crash, which was reported at 5:09 a.m. Sunday on Straughns Mill Road. Troopers are still investigating the circumstance of the crash, Slota said. A section of Straughns Mill Road remained closed as of early Sunday afternoon, according to police. No additional information was immediately available. Our journalism needs your support. Please subscribe today to NJ.com. Nicolas Fernand…