A man brandishing a handgun robbed the Madison Shell on Main Street around 2:24 a.m. Tuesday and fled southbound on Prospect Street by foot, authorities said.
The man reportedly walked up to the attendant in the station booth and asked for cigarettes, Madison Police said in a news release.
As the attendant retrieved the cigarettes and unlocked the door, the man put on a ski mask and brandished the gun, police said. The man ultimately made off with between $600 and $1,000 in cash, police said.
The suspect is described as a heavyset black male, 20 to 25 years old, approximately 5 feet 2 inches tall, with dreadlocks, police said. He was wearing dark pants and a yellow shirt at the time of robbery, according to police.
The Madison Police Department was assisted by Florham Park, Chatham and Chatham Township police departments and the Morris County Sheriff's Office.
Police ask anyone with information to please call the Madison Police Department at 973-593-3000 or Detective Sean Plumstead at 973-593-3014.