Two tug boats collide in Houston ship channel:

http://www.click2houston.com/news/million-gallon-bearing-barge-on-fire-off-the-coast-of-galveston/34250180

http://gcaptain.com/barge-collision-fire-spill-closes-section-of-gulf-coasts-intracoastal-waterway-near-houston/#.Va0j7fkuPOo