The owner of Louie’s Superette, the popular convenience store near Mather House, was robbed at gunpoint Friday night.

No one was hurt in the robbery and no arrests have been made, Cambridge Police Department spokesperson Frank D. Pasquarello said yesterday.

Cheng-San Chen, the owner of Louie’s, described the alleged suspect as a five-foot-four black male around 140 pounds and between the ages of 18 and 20, wearing a black jacket, black pants and a do-rag on his head.

Chen said the armed assailant entered the store, which was empty of customers, around 7:45 p.m. while he was restacking beer in front of the counter.

Chen said the robber, whose face was hidden by a handkerchief, then pointed the gun at him and said, “Give me all your money or I’ll shoot you.”

Chen then walked behind the counter and gave the assailant all of the 10 and 20-dollar bills in the register, he said.

“I thought he would be happy with that,” Chen said. “But then he grabbed all the money [left in the register] and ran out.”

After the robber fled up Putnam Street, Chen said he called the police, who arrived about five minutes later.

Pasquarello called the robbery an “isolated incident.”

“It’s been pretty quiet at the superette area,” he said. “We haven’t had too many problems there.”

Pasquarello said he did not know how much money was stolen, but Chen estimated that he lost between $100 and $200.

Chen said he was not scared by the incident.

“To me, life and death is very close,” he said. “Life is in the hand of God.”

Chen said he even thought about fighting the robber—who, he said

wasn’t much larger in build than Chen himself.