TEUTOPOLIS, Ill. (WCIA) — The Illinois State Police are asking the public for help in identifying a vehicle that was potentially involved in the crash outside of Teutopolis Friday evening that resulted in an anhydrous ammonia spill.

The spill left five people dead and several others hurt. Much of Teutopolis was evacuated as a result.

Illinois State Police released video showing the vehicle in question, recorded in Montrose at the intersection of Spring Creek Road and U.S. 40. That video can be found below:

The crash happened at 19470 East U.S. Highway 40. State Police said the investigation led them to believe a dark colored vehicle of unknown make and model may have been involved in the incident as it headed westbound on U.S. 40. Police believe the vehicle could have passed the semi-truck tanker, causing the semi driver to lose control.

State Police said agents are collecting surveillance footage in Casey, Montrose and Teutopolis that can provide more information. If someone has security cameras in the area that may have recorded the vehicle before or after the crash, they are asked to contact the Illinois State Police Division of Criminal Investigation Zone 8 at 217-342-7881.