Houston suburbs lift travel restrictions imposed after petrochemical fire

Two Houston-area cities told residents to stay indoors and closed schools on Thursday due to air pollution from a petrochemical plant fire, then lifted the travel restrictions after airborne levels of the chemicals abated.The three-day blaze at Mitsui unit Intercontinental Terminals Co (ITC) in Deer Park, Texas, was extinguished on Wednesday after sending a plume of smoke over the area from 11 burning fuel tanks.No injuries were reported, but air monitors detected high levels of benzene, a toxic