DENVER (CBS4) – A fatal auto-pedestrian crash investigation on Interstate 25 led to the shutdown of the southbound lanes in Northglenn overnight. It happened at I-25 and 104th and the closure lasted for 5 hours — until after 6 a.m. on Thursday.

An image of the backup on Interstate 25 early Thursday morning (credit: CDOT)

A man in his 20s who was on foot was crossing the highway and was fatally struck by three oncoming cars. There’s no word so far on why the man was in the road.