Update Tuesday, April 14 at 10:11 a.m.
Detective Dan Kelty has confirmed the driver was arrested for DUI and taken into custody. A woman was taken to Baptist East Hospital.
The two vehicles were traveling west on Highway 44 towards Shepherdsville. The woman paused to make a righthand turn onto old Bardstown Road and was rear-ended by the man.
"He wasn't paying attention," Kelty said.