UPDATE: Interstate 24 traffic back to normal after wreck in Kentucky

Update, 5:40 p.m.: Traffic has returned to normal through the area.

Previously: 

CLARKSVILLE, TN (CLARKSVILLE NOW) – Interstate 24 westbound in Clarksville is blocked because of a wreck on the Kentucky side of the state line.

At about 3:15 p.m., Kentucky State Police Post 2 reported a crash near the 90 mile marker in Christian County that is blocking all lanes in both directions.

The crash involves a passenger vehicle and a semi, according to a news release. Cargo from the truck is scattered on the roadway.

The estimated duration is four hours or until approximately 7 p.m.

At 3:30 p.m., traffic was backed up to Exit 1 in Clarksville, with traffic slowed all the way back to Exit 4.

This article will be updated.