COVINGTON, La -- State troopers and hazmat crews are removing tar on a ramp to I-12 East Wednesday afternoon.

The LA-21 entrance ramp to I-12 East is still closed tonight as clean up crews are working to remove the tar/oil that spilled around 3 p.m. The Louisiana State Police said it will take about 6-8 hours to clean.

State Police said they hope to have the road open by Thursday morning. Alternate routes from LA 21 to I-12 East include Pinnacle Parkway and LA 1077.