A teenager has been arrested after a boy fell “from height” at the Tate Modern art gallery on the South Bank in central London, police have said.
The child was taken to hospital by air ambulance following the incident which took place at about 1445 BST on Sunday.
It is not known from where the boy may have fallen, and his condition is not currently known.
A large number of emergency staff are at the scene and visitors were initially locked inside the gallery.
BBC correspondent Jonny Dymond, who was at the gallery when the child fell, said visitors were “funnelled towards the main Turbine Hall and the exits were all closed”.
‘Building taped off’
“There were quite a lot of families with children, and security guards told us we couldn’t leave,” he said.
“There was at least two fire engines, 10 police cars and an incident control unit.
“Parts of the exterior of the building were taped off.”
A staff member, who did not want to be named, said “we are evacuating people as we speak”.
She added that there had been “quite a few witnesses” to the boy’s fall.
A Metropolitan Police spokesman said: “Officers are in the vicinity of the Tate Modern following an incident this afternoon.
“A child fell from height and is being taken to hospital by London’s Air Ambulance.
“We await an update on his condition.”
The Tate Modern opened in the disused power station on the River Thames, in 2000.
It was the UK’s most popular tourist attraction in 2018 with 5.9m visitors, according to the Association of Leading Visitor Attractions.