The robber threatened the attendant with "an unknown large metal object while demanding money" in an office area of the Ridge Road LukOil gas station just befor 9 p.m., Capt. Scott Hedenberg said.
The employee turned over several hundred dollars and the robber took off with it, getting into a two-door vehicle with a partial New Jersey license plate of "NFD," Hedenberg said.
The car then headed west on Albert Street, he said.
The robber was described as dark-skinned, in his 30s, about 6-foot-2 to 6-foot-4 with a think build, the captain said.
He was wearing a black North Face skull cap, black vest with a hood, grey sweater, black North Face gloves, black sweat pants and grey/white sneakers, he said.
Anyone with information that could help the investigation is asked to call North Arlington PD: (201) 991-4400.
Click here to follow Daily Voice Lyndhurst and receive free news updates.