By CBS 2 Chicago Staff

CHICAGO (CBS) – A man is arrested after injuring an employee at Peet’s Coffee shop in the South Loop Wednesday morning.

Police said around 9:35 a.m. the offender was banging on the window of the shop located at 41 E. 8th St. before walking in and removing a tip jar. The male victim tried to stop the offender and the offender broke the jar on the victim’s head. 

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The offender tried to flee but customers in the business helped hold the offender using chairs until responding officers arrived. According to a statement from Peet’s Coffee, the offender was not an employee of the shop.

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The victim was transported to Northwestern Hospital in good condition. The offender was also transported to Northwestern Hospital for a mental health evaluation.

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The shop is temporarily closed until Thursday. Area Three Detectives were investigating.

CBS 2 Chicago Staff