The Colorado State Patrol is looking for witnesses in a crash near Longmont that left one person dead on Monday.

Colorado State Patrol is asking for the public’s help to learn more information about a crash that killed a man who was driving on southbound Interstate 25 northeast of Longmont.

A segment of southbound Interstate 25 in Northern Colorado was closed March 9 after a fatal crash.

The crash involving a pickup and work van on I-25 near Mead closed southbound lanes on Monday morning.