A crash involving at least three vehicles caused major delays along I-35W in Fort Worth Thursday.
The crash happened just before noon Thursday near the exit for Heritage Trace Parkway.
Fort Worth police said at one time all of the northbound main lanes and the northbound express lanes were closed. Officers were able to get one of the main lanes back open a short time later. As of 3:30 p.m., it appears all of the free main lanes are open, but some of the express lanes remain closed.