More than 70 firefighters tackle blaze at London Zoo
SEE ALSO: Family dog found alive after California wildfires
The fire broke out at the attraction's adventure café and shop, with three quarters of the building and half of its roof affected.
No animals have been reported injured, although the fire was near an area where visitors can handle and feed creatures.
London Fire Brigade Station Manager Clive Robinson, who attended the blaze, said: "The fire mainly affected the café and shop. Part of nearby animal petting area was also affected although at this stage we don't know if any animals were involved.
The fire at @zsllondonzoo is now under control but crews will remain on the scene throughout the morning damping down the fire which has affected a cafe and a shop https://t.co/VqBLKK6gMj#londonzoopic.twitter.com/DH3wjg3xCO— London Fire Brigade (@LondonFire) December 23, 2017
"Firefighters worked hard to bring the fire under control as quickly as possible and to stop it from spreading to neighbouring animal enclosures. Crews will remain at the scene throughout the morning damping down any remaining pockets of fire."
Firefighters were called at 6am and the fire was under control by 9.15am. Fire crews from Kentish Town, Paddington, Euston, West Hampstead and other surrounding fire stations are at the scene.
ZSL London Zoo is currently dealing with an incident on site after a fire broke out. We'd like to reassure you that the fire is now under control. The Zoo will be closed today until further notice. We will update as quickly as the situation allows.— ZSL London Zoo (@zsllondonzoo) December 23, 2017
ZSL London Zoo is currently dealing with an incident on site after a fire broke out. We'd like to reassure you that the fire is now under control. The Zoo will be closed today until further notice. We will update as quickly as the situation allows.
The cause of the fire is under investigation.
London Zoo took to Twitter to tell visitors that the attraction will be closed on Saturday "until further notice".