The Coast Guard responded to a collision between a tug pushing barges and a tanker in the Houston Ship Channel Sunday. There has been no report of pollution or injury from either vessel. The unloaded 800-foot tanker, Minerva Maya, is reporting damage to the port bow and the five barges being pushed by the tug, M.L. Crochet, sustained some damage. All vessels are currently secured and in stable condition. Coast Guard Marine Safety Unit Texas City watchstanders were notified of the collision at 9 a.m. and began the response.