More than 100 firefighters spent the night tackling a blaze at a north London warehouse.
Twenty-five fire engines were sent to fight the fire in a storage unit in White Hart Lane in Tottenham.
The alarm was raised at around 8.15pm on Monday, with 140 firefighters tackling the fire at its peak.
London Ambulance Service said one patient had been taken to hospital with burns to the hand and crews remained at the scene.
A London Fire Brigade spokeswoman said officers were still trying to determine the cause of the fire.
Videos and photos showing the ferocity of the blaze were shared on social media.
Nico Hogg tweeted an image of the fire saying "that fire looks huge. Two miles away".
While Alex C posted a video on Twitter taken from a window seemingly very close to the fire saying: "Absolutely terrifying RE Tottenham fire as nervous residents directly opposite factory which has now collapsed."
LFB station manager Sam Kazmanli said: "This is a large fire, cylinders are involved so a hazard zone has been set as cylinders can explode when exposed to heat.
"There is a lot of smoke in the air. As a precaution, local residents are advised to keep their windows and doors closed."