The Minnesota State Patrol is investigating a crash on Interstate 94 Thursday morning near Monticello that involved 29 vehicles, half of which were semis.
The Patrol says poor visibility and challenging road conditions due to a snow squall made travel extremely difficult in the area at the time of the crash.
The crash took place just before 9:15 a.m. on I-94 near Wright County Road 18.
Several vehicles caught fire.
Nine people were transported by ambulance to a local hospital with what appear to be minor injuries.
Several drivers left the scene before first responders arrived.
The State Patrol is asking for drivers who left the scene or anyone with information regarding the incident to contact the Minnesota State Patrol St. Cloud District Office at 320-223-6666.