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).
9. 'Act now'
Protesters sit in the road as part of the protest in Covent Garden (Photo by Dan Kitwood/Getty Images) Photo: (Photo by Dan Kitwood/Getty Images)
10. The 'Red Rebel Brigade'
Members of the Red Rebel Brigade - an international performance artivist troupe - face a cordon of police officers as they join climate activists from the Extinction Rebellion group in central London (Photo by TOLGA AKMEN/AFP via Getty Images) Photo: (Photo by TOLGA AKMEN/AFP via Getty Images)
11. 'Heavy police presence'
Thousands of climate change demonstrators thronged central London on Monday (23 August), as environmental activist group Extinction Rebellion held its latest round of protests, promising two weeks of disruption. Protesters were greeted with a visibly heavy police presence as they converged on Trafalgar Square in the heart of the British capital, where they rallied with a marching band and speeches. (Photo by TOLGA AKMEN/AFP via Getty Images) Photo: (Photo by TOLGA AKMEN/AFP via Getty Images)
12. Protesters 'lock on' to a van
Climate activists from the Extinction Rebellion group lock on under a van they parked blocking a road in central London on August 23, 2021 as the group launched its 'Impossible Rebellion' series of actions (Photo by TOLGA AKMEN/AFP via Getty Images) Photo: (Photo by TOLGA AKMEN/AFP via Getty Images)