Monday's explosion in southeast Oklahoma sent plumes of black smoke in the air above the drilling site and left the charred rig crumpled on the ground.The rig fire near the town of Quinton was extinguished later that night but emergency workers were not able to look for the missing men until the next day when the site had cooled down enough.Pittsburg County Sheriff Chris Morris, during a news conference on Tuesday, said once the natural gas drilling rig was stabilized following the blast and subsequent fires, employees from the state medical examiner's office went into the wreckage and recovered the bodies in about two hours."The bodies were located in the area where they were presumed to be working in, what they call the 'dog house,'" Morris said. He was referring to a room on the rig floor that serves as an office for the drilling crew.Authorities said 16 people escaped the explosion without major injuries. One person was airlifted to a hospital.The cause of the blast is not known yet. State and federal officials, who are working with the companies involved, have launched an investigation.The Associated Press reports: