An employee was in her office, police said, when two men wearing hoodies and scarves over their faces walked in, placed a box-cutter knife to her neck and said: "Where's the money?"

The two robbers then stole a stack of cash, an iPhone and a pocketbook from the 51-year-old woman in her office at Clean All Maintenance on New York Avenue in New Cassel, Nassau County police said. It was not clear how much cash was stolen.

Police are searching for the duo, who they said committed the robbery just before 4 p.m. on Thursday.

The victim was not injured.

Police said she recovered her pocketbook inside the building -- with its contents intact.

She was unable to describe her assailants, police said.

Police ask anyone with information about the robbery to call Crime Stoppers at 800-244-TIPS. All calls will remain confidential.

It seems shark sightings are dominating headlines on Long Island and researchers are on a quest to find out why more sharks are showing up in Long Island waters. NewsdayTV meteorologist Rich Von Ohlen discusses how to stay safe.  Credit: Newsday/A. J. Singh; Gary Licker

'Beneath the Surface': A look at the rise in shark sightings off LI shores It seems shark sightings are dominating headlines on Long Island and researchers are on a quest to find out why more sharks are showing up in Long Island waters. NewsdayTV meteorologist Rich Von Ohlen discusses how to stay safe. 

It seems shark sightings are dominating headlines on Long Island and researchers are on a quest to find out why more sharks are showing up in Long Island waters. NewsdayTV meteorologist Rich Von Ohlen discusses how to stay safe.  Credit: Newsday/A. J. Singh; Gary Licker

'Beneath the Surface': A look at the rise in shark sightings off LI shores It seems shark sightings are dominating headlines on Long Island and researchers are on a quest to find out why more sharks are showing up in Long Island waters. NewsdayTV meteorologist Rich Von Ohlen discusses how to stay safe. 

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