(KNZA)--A Tuesday morning Brown County crash leaves a stretch of a major roadway closed.

That follows a crash, shortly after 7:00, involving a vehicle and a semi.

Brown County Sheriff John Merchant tells MSC News U.S. Highway 75, at K-20, remains closed to all traffic as emergency crews remain on the scene.

Merchant provides no details of the crash, saying that the investigation is being handled by the Kansas Highway Patrol.

However, a source close to the investigation says one person was killed in the wreck, that happened a mile south of the Sac and Fox Casino.

It's not immediately known how long the highway will remain shut down.