The City of Pittsburgh Police Department responded to an armed robbery at Hello Bistro Sunday night, according to a Pitt crime alert sent out Monday afternoon.

The crime alert from University of Pittsburgh Police said city police responded to the robbery at 11:11 p.m. The store closes at 10 p.m. and reopens at 10 a.m. every day.

A suspect entered the store on Forbes Avenue and placed a gun to a worker’s head, demanding money. The suspect fled from the back of the building with an unknown amount of money.

The salad and burger restaurant was open Monday afternoon and a manager referred questions to the corporate office. A corporate representative did not respond in time for publication.

The suspect is a thin black male, about 5 feet 7 inches to 5 feet 8 inches tall and wearing all black with a mask, the alert says.

Kevin Zwick, a University spokesperson, said they had no further information regarding the incident as of Monday night. Alicia George, a Pittsburgh Police spokesperson, said the city police also had no further update on the robbery as of Monday evening.

The alert asks people with information to call Pitt police at 412-624-2121 and reference report # 18-01117 or call Pittsburgh police (Zone 4) at 412-422-6520 and reference CCR #50928.