A nine-year-old boy was killed early Monday morning after he was struck by a semi truck while attempting to cross Highway 50.

Colorado State Troopers say they responded to a crash on Highway 50 milepost 323 in Pueblo County at 5:27 a.m.

Investigators determined the boy had attempted to cross the highway from the Oakwood Estates Mobile Home Park before sunrise when he was struck by a semi truck and trailer traveling westbound on Highway 50.

The boy died at the scene and the driver of the truck is from the Pueblo area, Colorado State Patrol says.

Details surrounding this crash are still being investigated. No charges have been filed against the driver of the semi who remained at the scene, according to a press release sent out Monday afternoon.

The identity of the child will be released at the discretion of the Pueblo County Coroner’s office.