Two workers dead, dozens injured after chemical release at PEMEX facility, sheriff says KHOU.comHouston chemical plant leak kills 2, injures at least 35 Fox News2 killed, at least 35 injured after chemical release reported at refinery in Deer Park, officials say ABC13 HoustonPemex Deer Park reports Hydrogen Sulfide release, 2 killed, dozens affected; Deer Park shelter in place lifted FOX 26 HoustonChemical leak at Houston-area plant kills 2 workers and injures several others, prompting city-wide shelter-in-place CNN