A gorilla that escaped from its enclosure at London Zoo has been recaptured after being subdued by a tranquilliser dart.
ZSL London Zoo said it was "managing an incident" following reports of the escaped gorilla.
Earlier members of the public were locked in the butterfly enclosure.
Footage posted on social media from the zoo showed armed police walking through the zoo's grounds.
Scotland Yard said: "Police were called by security at Regent's Park at 5.17pm to reports of an ongoing incident.
"Officers are there to support ZSL staff."
Gorilla caught after escaping at London Zoo
Stuck inside Butterfly Paradise at London Zoo as helicopters and sirens all around, something happening with gorillas. #Weird— Cris (@crisclark) October 13, 2016