Four people were killed last night on Interstate 80, just east of Grinnell. The Iowa State Patrol reports that two tow trucks were assisting a semi in the westbound land about six miles east of the Grinnell interchange.

At about seven, three men were standing outside their vehicles in the shoulder when another semi, driven by 54-year-od Herbert Terrell of Huntington, Indiana, sideswiped the first tow truck then hit the disabled semi, pushing it into the tow truck ahead.

The semi driver and the three tow truck operators, 29-year-old Jesse Inman of Ankeny, 60-year-old Daniel Walsh of Des Moines, and 50-year-old James Langholf of Dakota, Illinois, were pronounced dead at the scene.

Westbound I-80 was closed for ten hours after the accident.

By Chris Johnson, KGRN, Grinnell

Radio Iowa