Traffic is being diverted away from Wilson St in Whanganui due to a gas leak.
Fire and Emergency were called to the scene around 2.10pm on Tuesday afternoon.
Wanganui Fire Service Senior Station Officer Craig Gardner said the road has been blocked off from Maria Place Ext to Ridgway St as crews begin repairs.
"The contractors shoring has given way and then caused movement in the gas pipe and it has pulled it and released the leak," he said.
"We've cordoned off the road and the contractors are using digging equipment without machinery."