CHICAGO (WLS) -- The Museum of Science and Industry closed unexpectedly on Wednesday.
The museum said there was last-minute scheduling to relocate some military artifacts from their archives.
Some of the artifacts date back to before World War II. The movement of the artifacts involved bringing in specially-trained military personnel to help with the process.
MSI will provide refunds or rescheduling for individuals or groups who had purchased tickets.
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The museum said it will reopen Thursday.