PACIFIC, Mo. – Traffic is stalled on Interstate 44 westbound near Pacific, Missouri, as crews work to clear the scene of a crash.

As of 4:30 p.m., all three lanes of traffic westbound are blocked. Emergency crews are at the scene assisting with a crash investigation.

Backups are expected for several miles. It’s unclear how long it might take crews to clear the scene and open up traffic on the interstate.