Two men from Pennsylvania were arrested Tuesday and charged with the gunpoint robbery of people staying at a Sussex County motel earlier this month, authorities said. Three men wearing masks entered a room at Cobmin Ridge Motel on Route 206 in Branchville about 5:30 a.m. on Aug. 10, according to New Jersey State Police Superintendent Patrick J. Callahan. The victims were robbed at gunpoint, according to Callahan and Acting Sussex County Prosecutor Carolyn A. Murray. Investigators did not say what was stolen or how many victims were in the room when the alleged robbery occurred. The crime wasn’…