CHICAGO (CBS) — Police say a woman used a fake hand grenade to hold up a pharmacy on Clark Street in the Lincoln Park neighborhood.

As WBBM Newsradio’s Bernie Tafoya reports, charges are pending against the woman in the Tuesday afternoon incident.

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LISTEN: WBBM Newsradio’s Bernie Tafoya reports

Police say the woman walked into Braun Drugs, 2060 N. Clark St., and waited for some customers to leave. Then she announced a robbery to employees.

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The woman was described as a bit unkempt, and after she pulled out a hand grenade and demanded money, store employees grabbed her and held her for police.

The grenade turned out to be a fake, a Near North District sergeant said.

The 26-year-old woman was arrested, and police say she could face attempted robbery charges.

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The Sun-Times Media Wire contributed to this report.