Ohio explosion caused by cut gas line thought to be turned off, investigators say

The National Transportation Safety Board says a crew working in the basement area of an Ohio building intentionally cut a gas line not knowing it was pressurized before a deadly explosion this week

​The National Transportation Safety Board says a crew working in the basement area of an Ohio building intentionally cut a gas line not knowing it was pressurized before a deadly explosion this week The National Transportation Safety Board says a crew working in the basement area of an Ohio building intentionally cut a gas line not knowing it was pressurized before a deadly explosion this week US