Police said a man held up the Island Dollar store...

Police said a man held up the Island Dollar store in Shirley on Sunday night, Feb. 25, 2018, and fled with an undisclosed amount of cash. Credit: T.J. Lambui / LiHotShots

Police are investigating an armed robbery at a Shirley discount store on Sunday night, authorities said.

A man with a knife demanded cash from a clerk at Island Dollar at 579 Montauk Highway around 6:30 p.m., a Suffolk County police spokesman said.

The clerk handed over the money and the man fled, police said.

The department’s Seventh Squad detectives are investigating the holdup.

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Marking the Jan. 6 Capitol attack ... Longtime German restaurant closing ... Get the latest news and more great videos at NewsdayTV

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Marking the Jan. 6 Capitol attack ... Longtime German restaurant closing ... Get the latest news and more great videos at NewsdayTV

SUBSCRIBE

Unlimited Digital AccessOnly 25¢for 6 months

ACT NOWSALE ENDS SOON | CANCEL ANYTIME