The U.S. Chemical Safety Board has said it will launch a full investigation into the Oklahoma rig explosion that killed five people this week as Oklahoma authorities suggested that an equipment failure might have contributed to the tragedy.
The US Chemical Safety Board have confirmed that they are deliberating on launching a larger investigation into the explosion which killed five at an Oklahoma drilling rig near Quinton.
Five workers are presumed dead, including one Texan, after an explosion ripped through a drilling rig in Oklahoma, triggering the nation's deadliest oil and gas incident in several years.
