Protesters occupied have blockaded five tourist hotspots around London - Marble Arch, Oxford Circus, Waterloo Bridge, Parliament Square and Piccadilly Circus.
Activists had been told they must continue any demonstrations within the Marble Arch area, and police were taking action against protesters in other locations, he said.
The Metropolitan Police said on Tuesday evening that more than 200 people had been arrested over the two days of disruption.
Climate activists yesterday blocked main roads, bridges and thoroughfares throughout central London in a bid to force the government to do more to tackle global warming.
Electrical short circuit may have caused Notre Dame fire, French officials say
In a letter sent on Thursday to Polish bishops, they said "We as Jews know what it means to see your house of worship burning". A preliminary investigation of the scene on Tuesday found no immediate signs of arson, the city's public prosecutor said.
As these tweets show though, the Extinction Rebellion movement has grown far beyond the United Kingdom - with protests taking place in countries like Australia, the USA, Germany, Turkey, India, Denmark and Canada.
Campaigners protesting in Nottingham about the state of the environment say further action is planned over the course of the week and have pledged to "bring the entire city to a standstill".
Thousands of people took part in demonstrations held by climate group Extinction Rebellion on Monday in London, disturbing traffic and business to call for response over the growing ecological crisis.
London got its Garden Bridge today.
The Shell office has been painted with Extinction Rebellion's logo and messages reading "climate criminals" and "crime scene".
Full 'Pink Moon' will rise in the night sky this Easter
Try and find a moon watching position without too many obstacles and look to the horizon where the moon will rise. The color will be similar to that of a regular full moon: bright yellow or white, perhaps orange at some points.
The cofounder of Extinction Rebellion, Roger Hallam, told Financial Times that his motive in creating the organization was "overwhelming evidence of the demise of the human race ..."
Activists have also converged onto Parliament Square, where they help up placards and waved flags as speakers took to the stage.
Protesters have been warned by Extinction Rebellion that they could face arrest for blocking traffic, while TfL said Londoners face travel delays. Protesters aim to keep the demonstrations going for two weeks.
"People have come up to us to thank us emphatically", she said. "We must act now".
Scotland Yard said "appropriate policing plans" are in place and officers will be used "to support the public order operation during the coming weeks".
Are British Tabloids Upset With Meghan Markle and Prince Harry?
How many rooms in Frogmore? "Meghan is very strong-minded and there will probably definitely be a butting of heads". Kate and William hired highly-trained Norland nanny Maria Borrallo for Prince George when he was seven months old.