Despite hundreds having been arrested so far, climate change activists threatened to disrupt public transportation in London Wednesday after demonstrations at four city landmarks in the past two days.
The actress flew back to London from LA after celebrating her 60th birthday to join climate change campaigners during their week of protests.
"We expect demonstrations to continue throughout the coming weeks", the police statement said.
"I'm so proud and thrilled to be part of Extinction Rebellion".
Maajid offered some advice for next steps: "Think the Occupy movement, think how decentralised it was and how lofty its aims and ideals were but how quickly it fell".
He said: "The sufferers will be the communities in the local boroughs where officers are being taken from the community areas and the funding and money has to be found to deal with what we are doing".
Extinction Rebellion Ireland member Ciarán O'Carroll said it is time for Ireland to become one of the worldwide leaders on climate change.
In many cases, protesters lay down on roads and bridges, with some reportedly gluing themselves to trains.
"Protesters can expect a robust police response", Assistant Commissioner Nick Ephgrave said.
The group has called for non-violent civil disobedience to push the British government to reduce net greenhouse gas emissions to zero by 2025 and to stop what it calls a global climate crisis.
London mayor Sadiq Khan said he was "extremely concerned" about protesters' plans to disrupt the underground on Wednesday.
Disrupting the services of an airport that could endanger the safe operation or safety of passengers and staff is a crime.
Police have made almost 300 arrests in connection to the activist's multi-day protest so far.
This morning the protesters turned their attention to their new target of Vauxhall Bridge (right), having already taken over Waterloo Bridge, Oxford Circus, Piccadilly Circus, Parliament Square and Marble Arch.
The people charged are Cathy Eastburn, 51, from Lambeth, south London; Mark Ovland, 35 of Somerton, Somerset; and Luke Watson, 29, of Manuden, Essex.
On Thursday night the Metropolitan police said they had arrested more than 500 people so far and had cancelled leave for some officers over Easter.