A masked man's attempt to rob a deli was foiled this week when a regular customer interrupted the armed robbery and helped scare the intruder off, authorities said.

Police responded to the Danforth Avenue store just after 8:20 p.m. Tuesday on the report of an armed robbery. They were met by a store employee who said that a man brandishing a handgun entered the deli at the corner of Fowler Avneue around 8:15 p.m. and tried to make his way behind the counter, a police report indicates.

The robber, who was wearing a black ski mask, black skullcap, dark gray blazer and gray pants, told the employee to "put the money in the bag...I'm gonna shoot you," according to the report.

At that point a frequent customer entered the store, saw what was transpiring and yelled "What the f--- are you doing" at the robber, according to the report.

The robber left the store, knocking over a number of ramen noodle products as he fled. He headed north on Fowler Avenue toward Cator Avenue and then turned east toward Kennedy Boulevard, the report states.

Editor's note: This story has been updated to reflect the correct time police responded to the scene. A previous version of the story should have stated police arrived just after 8:20 p.m.