A small section of the Upper Houston Ship Channel was closed Tuesday morning after a report of 1,000 gals. of diesel entered Greens Bayou from a cement facility.

Coast Guard Sector Houston-Galveston watchstanders received the initial report at 7:13 a.m. of a diesel storage tank overflowing and entering the waterway.

To facilitate spill assessment and response operations, the Coast Guard Captain of the Port established a safety zone at 7:57 a.m., closing the Houston Ship Channel where it intersects Greens Bayou.

Coast Guard incident management personnel are on scene with Garner Environmental, who has been contracted by South Central Cement to conduct cleanup operations.

The diesel release was secured and the spill has been contained using boom.