Protests organised by the climate activism group Extinction Rebellion have got underway in London.
The group says it will protest throughout the capital over the next two weeks.
It is the largest action of its kind since the group came to London for a fortnight in April 2019.
Here are just some of the scenes at the protests today (23 August).
1. The "Impossible Rebellion" begins
LONDON, ENGLAND - AUGUST 22: Police watch as protesters from Extinction Rebellion light a flare and unfurl a banner from the Guildhall during a protest on August 22, 2021 in London, England. The Impossible Rebellion begins on August 23, on the 230th anniversary of the start of the beginning of the Haitian Revolution and the International Day for the Remembrance of the Slave Trade and its Abolition. (Photo by Hollie Adams/Getty Images) Photo: (Photo by Hollie Adams/Getty Images)
2. 'Demand the Impossible'
Protesters from Extinction Rebellion hold up a banner outside the Guildhall during a protest on August 22, 2021 in London, England. (Photo by Hollie Adams/Getty Images) Photo: (Photo by Hollie Adams/Getty Images)
3. Covent Garden
Extinction Rebellion protesters gather in Covent Garden on August 23, 2021 in London, United Kingdom (Photo by Dan Kitwood/Getty Images) Photo: (Photo by Dan Kitwood/Getty Images)
4. Rest for climate change
Protesters lay down in the street as part of the 'Impossible Rebellion' protests (Photo by Dan Kitwood/Getty Images) Photo: (Photo by Dan Kitwood/Getty Images)