Firefighters have isolated a gas leak outside a residential home on Fern Place, Banks.
ACT Fire & Rescue was called following an Emergency Triple Zero (000) call at 6.41am.
A gas meter has been damaged and was leaking gas.
Three properties have been affected with the leaking gas and the residents have been evacuated. Firefighters are currently conducting ventilation and atmospheric monitoring operations at the homes before allowing the residents to return inside.
ACT Ambulance Service intensive care paramedics are also responding to the scene to access one patient.
Update to follow.