Scores of firefighters are battling two major blazes in London.
In Greenwich, a fire at a recycling yard, industrial units and a pub in Tunnel Avenue has seen more than 100 firefighters dispatched and a man taken to hospital by air ambulance with burns.
Meanwhile, more than 10 engines and 72 firefighters are dealing with a blaze at a new block of flats near a KFC restaurant on Erith High Street.
In Greenwich, the London Fire Brigade (LFB) said they were called to the scene at around 11.43am and due to the involvement of "some gas cylinders", they set up a safety cordon.
Crews from East Greenwich, Greenwich, Plumstead, Eltham, Deptford, Lewisham, Poplar, Whitechapel and Bethnal Green are in attendance.
Images shared across social media of the scene show a plume of black smoke that can been seen from across the capital. Pictures of flames raging behind the Ibiza-style nightclub Studio 338 have also been widely posted.
Station manager Winston Douglas said: "Firefighters wearing breathing apparatus rescued a man who has been taken to hospital by ambulance.
"This is a large fire and the smoke could be seen from across London, meaning we received a large number of emergency calls.
"Firefighters will be at the scene for the rest of the day, and possibly into the evening.
"If you're affected by smoke our advice is to keep doors and windows closed."
The Metropolitan Police confirmed they are on the scene and "assisting" with the incident, and a London Ambulance Service spokeswoman said they have sent a single responder in a car, an ambulance crew, the hazardous area response team, two incident response officers and the air ambulance to the scene.
A spokeswoman added: "We treated one patient at the scene for burns. They were taken to hospital by London's air ambulance. We remain on the scene."
Within two hours of the first fire, at around 1.35pm, LFB crews were scrambled to the major blaze in Erith.
A spokesman for the LFB said the ongoing fire is affecting a flat on the fifth floor, the communal corridor and a roof void of the building.
Crews from stations including Erith, Bexley, Sidcup, Orpington and Bromley are at the scene. LFB said it has received more than 30 calls about the incident.
The Metropolitan Police service are also at the scene.
A spokeswoman for the LFB said firefighters wearing breathing apparatus rescued a woman from inside the building in Erith.
The spokeswoman said around half of the roof of the flats is on fire, as well as half of a communal corridor - with damage caused to part of a flat.
At this stage there are no reports anyone is trapped inside.