Gas Pipeline Blast Kills at Least 3 3 missing after Texas explosion 'like a tornado' By M. Morris, Newser Staff Posted Jun 7, 2010 5:25 PM CDT 9 comments Comments Map locates the site of a deadly explosion in Texas (AP) (Newser) – A gas pipeline about 50 miles south of Dallas exploded this afternoon, killing at least three people and sending an enormous ball of fire and smoke into the air. " People were reporting seeing a fireball and their windows shaking like from a sonic boom, " the county commissioner told the Dallas Morning News. "We've got an unknown number of people still unaccounted for," the local fire chief told CNN. Workers using a digging machine punctured a 36-inch line at around 2:40 local time, causing the ground to shake violently. "For about 10 minutes, it was so loud that it was like there was an 18-wheeler rumbling in your driveway," a local resident told the AP.