Extinction Rebellion starts its two-week environmental protest on Monday, planning to block streets and bridges in London and shut down governmental departments. Around 30,000 activists will reportedly engage in the campaign.

The Metropolitan Police has warned of possible arrests of those violating the law. An "opening ceremony" was held on Sunday evening.

"As of 12:30hrs on Monday, 7 October: Today, there have been a total of 135 arrests [no further details]," the police said in a statement.

According to media reports, the protesters blocked traffic in the areas of Westminster Bridge, Lambeth Bridge, Trafalgar Square and Whitehall.
Some activists had reportedly attached themselves to cars and structures, and police used tools, including buzzsaws, to extricate them.

Extinction Rebellion sociopolitical movement was founded in the United Kingdom in May 2018 to call for governmental action to tackle climate change, biodiversity loss and risk of ecological collapse.