With black smoke coming out of its top exhaust pipes, a large semitrailer slowly proceeded off of U.S. Highway 75 Monday afternoon behind a Sherman Fire-Rescue ambulance and with two department fire engines trailing it and regular traffic driving along the roadway.

Sherman Police Sgt. Brett Mullin said the truck had stopped on Hwy. 75 going over Travis Street, just prior to reaching the exit for Texoma Parkway, when it initially had the black smoke coming from the top exhaust.

Mullen said it was determined the smoke was related to an issue with the engine in the truck, not a crash or a fire. He said there was debris to be cleared up off the road, but it was not related to any kind of collision.

Traveling at an extremely slow speed, the truck and Sherman Fire-Rescue vehicles eventually exited the highway at Lamberth Road.