Protesters arrested after climbing atop UK PM's mansion and covering it in black fabric

Mr Sunak's record on environmental issues has come under scrutiny in recent months after he said he would take a "proportionate approach" to climate change that balances net zero ambitions with the need to keep consumers' bills down.

That has drawn fury from climate protesters who have stepped up their campaigns, disrupting high-profile sporting events, classical music concerts and political speeches.

In response, Mr Sunak's ministers have introduced new laws to clamp down on "eco-mob" protester tactics including slow walking in busy roads and "locking-on" to buildings or infrastructure.

Deputy Prime Minister Oliver Dowden said protesters should "stop the stupid stunts".