Emergency Services have closed Cant Crescent in Carlisle whilst they deal with a ruptured gas cylinder.
The cylinder is mounted on a vehicle.
Both police and Cumbria Fire and Rescue Service are currently at the scene.
Residents within Cant Crescent are being advised to stay in their homes and avoid exposing naked flames.
The fire and rescue services are reassuring people that this is as a precautionary measure only.
Motorists are also being asked to avoid the area.