Police said traffic was slowed after the bus was involved in a crash on Interstate 55 near the Pulaski Road exit, WBBM-AM, Chicago, reported Friday.
The crash resulted in minor injuries to a sheriff's officer and a prisoner, police told the Chicago Sun-Times.
The newspaper reported that the bus in the accident was part of a convoy taking prisoners to Stateville Correctional Center in Crest Hill, Ill.
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