A crash on I-65 south at the Gene Snyder Freeway left three people injured. Three vehicles were involved in what police called a chain reaction crash. It happened just past the Park Road overpass around 7 a.m. Friday. LMPD said the driver and passenger of the first vehicle that was rear-ended were taken to UofL Hospital. The passenger is in critical condition.A third person, the driver of the third vehicle, was also hospitalized, but the injuries are non-life-threatening. The road has since reopened and the Traffic Unit is investigating.