TINLEY PARK, ILLINOIS – JANUARY 26: Members of the Illinois National Guard vaccinate residents against COVID-19 at a mass vaccination center set up at the Tinley Park Convention Center on January 26, 2021 in Tinley Park, Illinois. The site is the first large-scale vaccination center in Cook County, which includes the city of Chicago. The site will be able to distribute 3000 vaccinations-per-day once adequate vaccine supplies become available. (Photo by Scott Olson/Getty Images)
A mass vaccination site at the Tinley Park Convention Center was briefly locked down Thursday morning due to police activity, Cook County officials said.
According to Tinley Park Village Manager Pat Carr, an incident in nearby Olympia Fields led to a search in the area, which prompted a lockdown of several businesses. The search ended with no arrests, Carr said.
A post on the village's Public Safety Department Facebook page reported the search started just before 9 a.m. and ended about an hour later.
"After a thorough search, The police units are clear the area. It is believed the subjects are no longer in our town," the post read.
The Cook County Department of Public Health said the lockdown at the mass vaccination site was lifted by 10 a.m.
The county said anyone whose appointments were affected by the lockdown can reschedule their appointments. Those who may have missed an appointment can visit the site Thursday or Friday or between 8 a.m. and 5 p.m. Saturday to get their vaccine.
Should those times not work, residents should call the vaccine hotline to reschedule.
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Tinley Park police did not immediately respond to requests for comment.
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