Extinction Rebellion protesters have blocked access to the BBC's headquarters - with staff reportedly unable to enter or leave through the main entrance.

Dozens of demonstrators camped outside New Broadcasting House in central London on Friday morning.

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They carried banners urging the corporation to end its "silence" on climate change, while others taped over their mouths to suggest their voice had been taken away.

Image: Protesters claim news outlets are ignoring the threat posed by climate change

BBC workers reported being unable to get in or out of the building, among them financial journalist Paul Lewis, who tweeted: "No one in no one out. Locked down."

Locked out of BBC by extinction rebellion pic.twitter.com/BGLzsPrVY3 — Paul Lewis (@paullewismoney) October 11, 2019

The demonstration is the latest in a week of planned protests which has already seen at least 1,112 people arrested since Monday, Scotland Yard said.

Image: Extinction Rebellion protesters prevented staff entering BBC headquarters in London

On Thursday, demonstrations focused on London City Airport, where protesters attempted a "Hong Kong-style occupation" of the terminal building, with hundreds blocking the main entrance.

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One demonstrator, former Paralympic cyclist James Brown, climbed on top of a British Airways jet, prompting criticism from Metropolitan Police Commissioner Dame Cressida Dick, who described the act as "reckless, stupid and dangerous".

They've shut down London, poured fake blood on the Treasury and caused chaos at Heathrow Airport. But who are Extinction Rebellion?

Earlier in the week, various protests took place in Westminster, with protesters gluing themselves to government buildings and roads, a frequent Extinction Rebellion tactic.

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