A fire that burned for four days after a pipeline explosion in the Houston suburbs burned out Thursday after the once-towering blaze put hundreds of nearby homes under evacuation orders. Investigators say the fire began after the driver of an SUV went through a fence alongside a Walmart parking lot and struck an above-ground valve.

A vehicle crashed into a gas pipeline valve, exploding into a tower of flame that burned for days. Investigators are now looking into whether it was more than an accident.

Human remains were found inside an SUV that authorities say hit an aboveground valve on a pipeline in suburban Houston, causing a fire that has burned for four days, officials said Thursday. With the fire substantially smaller since it began on Monday,