JACKSON COUNTY, Al. (WLFI) - A Purdue student is dead after falling around 200 feet while cave rappelling in Alabama.

News 18's sister station in Huntsville, Alabama reports that 21-year-old Trever Col was rappelling in Valhalla Cave, when the rigging came loose due to a knot in the rope. When Col tried to fix it, he fell.

Jackson County Sheriff Chuck Phillips said it happened around 8:30 Saturday morning and that he died on impact. He said Col was with four other Purdue students at the time, and that the group had to drive more than a mile to be able to call for help.

Purdue University spokesperson Tim Doty confirmed that Col was a senior studying mechanical engineering. He was originally from Austin, Texas.

This is a developing story.