Pamela J. Sorrells, 59, airlifted to hospital after suffering medical episode, colliding with tractor-trailer on I-64 in Ferdinand, Indiana

Pamela J. Sorrells, 59, of Randolph County, Arkansas, was traveling west on I-64 near the 64-mile marker at Ferdinand just after 4 p.m. when she lost consciousness due to a medical condition, according to a news release from the Indiana State Police.

Her 2008 Chevrolet pickup swerved across lanes and struck a 2007 Freightliner semi truck sitting on the shoulder. The semi, which was pulling an empty 53-foot enclosed trailer, was parked on the shoulder after breaking down, according to the release.