Around 30 firefighters and six fire engines have been dealing with a house fire in Woodlands, Chatham.
The incident was reported at 4pm, and Kent Fire and Rescue Service attending as well as electrical and gas safety engineer, Kent Police and the South East Coast Ambulance Service (SECAmb).
After there were reports of gas canisters, residents from two houses next door were evacuated.
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There were two occupants treated for smoke inhalation, with one being taken to hospital for further treatment.
A Kent Fire and Rescue Service spoksperson said: “Crews wearing breathing apparatus used a combination of high pressure hoses and main jets, setting up a water shuttle to transport water from the nearest fire hydrant to the scene of the incident.
“A powerful fan was used to help drive smoke and fumes from the property.
“Due to reports of gas cylinders being stored in the garage, Kent Police officers evacuated neighbouring houses for safety reasons.
“Two occupants were assessed by paramedics for the effects of breathing in smoke, with one person being transported to hospital for further treatment. The cause of the fire has not yet been established.
The fire, which is believed to have started in the two-storey property’s garage, before spreading to a bedroom above and on to the roof space, has caused structural damage along with that caused by the smoke and flames.
Firefighters are working closely with local authority building control officers to make the scene safe.