The teenager killed Wednesday morning on I-90 near the Lockwood overpass has been identified by the Yellowstone County coroner's office.

Delanee Jade Casterline, 18, died of multiple blunt force injuries, said assistant coroner Rich Hoffman.

Montana Highway Patrol troopers and Yellowstone County Sheriff deputies responded to the accident shortly after 6 a.m. Wednesday at mile marker 453 on I-90. Investigators were on the scene all morning and a semi tractor-trailer was pulled over nearby.

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