A wreck on interstate 57 near West Frankfort early this morning left one injured and backed up traffic for some time. According to a State Police accident report, at around 7:50 this morning a vehicle driven by Jason Cooper of Fairfield struck a vehicle being driven by Samantha Mendenhall of West Frankfort while attempting to avoid a merging vehicle. Mendenhall was hospitalized with non-life threatening injuries. The merging vehicle left the scene and was unidentified. The crash remains under investigation.