Manchester Police are hoping someone can identify this man who was possibly involved in an armed robbery at Seven Days Market on Monday.

MANCHESTER — City police are asking the public for help locating a man they say held up a convenience store at knifepoint Monday night — the second such holdup in the Queen City across a seven-hour span.

According to Manchester police, officers responded to the U.S. Mart store at 540 Hall St. around 7 p.m. Monday to investigate a report of an armed robbery.

According to police, a man entered the store and demanded money from the clerk on duty displaying a knife. The thief then fled with an undisclosed amount of cash.

Police described the thief as a light skinned black male in his early 20s standing approximately 5’5”, weighing 150 lbs. The man was last seen wearing a gray sweatshirt with dark pants.

Anyone with information about the man is asked to contact the Manchester police detective unit at 792-5500 or the Manchester Police Crimeline at 624-404.

No further information was available Monday night.

Earlier on Monday police were searching for a man who robbed a downtown convenience store at knifepoint Monday afternoon.

A clerk at Seven Days Market, 360 Union St., told police that a man wielding an 8- to 10-inch knife demanded cash from the register around 12:25 p.m. Monday, police said in a release.

The clerk, who was not hurt, handed over an undisclosed amount of cash and cigarettes to the man, who fled on foot, police said.