Updated October 1, 2013: Authorities have now determined what caused an overnight gas leak in Lamar, Missouri.
Crews were dispatched late Monday night to a natural gas line rupture on Southeast 11th Road, on the south end of Lamar.
Officials with Missouri Gas Energy say two pipes separated at a joint after the ground beneath them shifted, causing pressure from the leak to create a small crater in the ground.
Residents in the area were evacuated but crews worked quickly to reroute the gas.
No one was hurt.
September 30, 11:45 p.m. update: Barton County Emergency Management Director Tom Ryan says MGE has sealed the line that ruptured earlier this evening. Residents are being allowed to return to their homes, but MGE is continuing to check other lines as a precaution.
Posted September 30, 2013 at 11:37 PM CST: A 12 inch natural gas line ruptured in the area of 21st and KK Highway on the south end of Lamar, Missouri on Monday evening.
Authorities were evacuating homes in that immediate area and urging others in the community to take shelter in their homes with doors and windows shut.
An emergency shelter has been established at Memorial Hall at 11th and Broadway.
Barton County Emergency Management Director Tom Ryan says the rupture created a 6-to-8 foot crater and allowed a plume of natural gas to escape.
MGE has arrived on the scene and stopped the leak, but residents in the immediate area are still not being allowed back in their home.
As of 11:35 p.m. there had been no fire.