Around 150 people have been evacuated from their homes after a huge blaze at a building site spread to several blocks of flats.
More than 125 firefighters were tackling the blaze in Peckham, south east London, which spread rapidly in the early hours.
One resident spoke of flames shooting 20ft high from the three and four storey blocks as residents sheltered on the street.
One casualty was treated at hospital for smoke inhalation, with their condition not reported to be life threatening.
A total of 25 fire pumps were at the scene, along with police officers and 20 ambulance crews on stand by.
A spokesman for London Fire Brigade said the building site near Carisbrooke Gardens first caught light, with gas cylinders possibly involved.
“The fire seems to have spread very rapidly,” he said.
The Metropolitan Police said the fire had spread to “several” blocks of flats and other properties in Sumner Road and Rosemary Road.
It comes nearly five months after six people died when a fire ripped through a block of flats in nearby Camberwell.
The tragedy at Lakanal House on July 3 led to concerns about the design of the building.
MP Harriet Harman said that the fire originated on a building site, spread to nearby flats and spread to properties on the other side of the road.