The burglary happened at in the 1000-block of North Ashland Avenue around 4 a.m.
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Surveillance cameras caught four men stealing a safe that was under the cash register, the owner said.
This is the third time they have been burglarized over the past year, according to the owner.
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Just down the street near Milwaukee and Paulina, thieves also broke a side glass door at the Daebak Korean BBQ restaurant.
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Suspects searched for money, but the manager said the restaurant doesn't keep a cash register in plain sight. Thieves left with nothing, and drove off in a silver SUV.
Two other similar business break-ins happened in the 4200-block of West Irving Park Road and the 600-block of West Adams Street on Monday.
No one is in custody in any of these incidents. CPD area detectives are investigating.
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