Workers may have been moving a gas meter when an explosion tore through a Minneapolis school building this week, killing two people and injuring at least nine others, according to federal investigators.
A team from the National Transportation Safety Board arrived in Minneapolis Thursday to begin the painstaking task of determining what caused Wednesday’s natural gas explosion at Minnehaha Academy. The bodies of two school workers – longtime receptionist Ruth Berg and custodian John Carlson – were found in the rubble.
Investigators will look into the movement of the gas meter, as well as whether the gas was turned off inside the building or at the street as the work was being done, NTSB board member Christopher Hart said. The NTSB is investigating because it has jurisdiction over gas pipelines.