Tractor trailer goes off I-270 overpass, lands below on 56th Avenue in Denver metro area

A tractor trailer went off the I-270 overpass on Tuesday and was heavily damaged when it landed below on 56th Avenue. That's in the northern part of the Denver metro area.

South Adams Fire said one person inside needed to be extricated from the cab of the truck and was rushed to the hospital.

Firefighters said they were dispatched to the crash at 4:45 a.m. Both directions of 56th Avenue were closed during the investigation and cleanup. 

Additional crews from Denver Fire Rescue, the Commerce City Police Department, and Platte Valley Ambulance Services arrived to assist.

What happened leading up to the crash is being investigated.