At least one of the four robbers had a long firearm -- possibly a semi-automatic TEC-9 -- in the 9:45 a.m. holdup of Jewelers on Fifth, a police spokesman said, adding that no shots were fired.
A total value of what was taken wasn't immediately disclosed.
Responders said the crew fled in an Audi with blacked-out windows.
Elizabeth police were working with the NYPD to determine whether the same robbers were responsible for taking 60 cellphones and $900 during a Labor Day holdup at a T-Mobile store on Staten Island.
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