What caused the pipeline fire in Deer Park, Texas? – KHOU.com

What caused the pipeline fire in Deer Park, Texas?  KHOU.comIntense flames linger, prompt major evacuations during pipeline fire in Deer Park  KPRC Click2HoustonClass will continue Tuesday for La Porte ISD after pipeline fire prompts shelter-in-place orders  ABC13 HoustonLarge pipeline continues to burn near Spencer Highway in Deer Park area | What we know right now  KHOU.comLIVE: La Porte pipeline fire near Spencer Highway causes road closures, evacuations, 4 total injuries reported  FOX 26 Houston