Pemex has resumed operations following an Oct. 10 chemical leak that led to two fatalities at the operator’s 340,000-b/d refinery in Deer Park, Harris County, Tex. Photo from Petróleos Mexicanos.

DEER PARK, Texas (KTRK) -- Another lawsuit was filed concerning the deadly chemical leak in October at the Pemex refinery in Deer Park. On Oct. 10, 35 people were injured and two killed.

One of the gases that leaked from the Pemex facility in Deer Park on Thursday was hydrogen sulfide. Hydrogen sulfide is often referred to as H2S. Its nickname is "swamp gas," and if you smelled it ...

A lawsuit was filed by a contractor's family against PEMEX refinery after a fatal hydrogen sulfide gas release.

A joint lawsuit has been filed on behalf of the family of Jose Wilfredo Perez Jr., a contractor who died in a fatal hydrogen ...

A lawsuit has been filed against PEMEX and other companies following a fatal gas leak at their Deer Park refinery that ...