Protestors from the Norwich branch of environmental group Extinction Rebellion have gathered in London for a second day.
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.
London's Metropolitan Police said that by early Tuesday 113 adults had been arrested.
Extinction Rebellion said their intention was to conduct non-violent acts of resistance and "peaceful action" but three men have been arrested on suspicion of criminal damage near the Shell HQ.
Transport for London warned bus users that routes would "remain on diversion / curtailment in central London due to on-going protest which are blocking roads".
The group has called on the United Kingdom government to reduce carbon emissions to zero by 2025 and establish a citizens' assembly to devise an emergency plan of action to tackle climate breakdown and biodiversity loss.
Extinction Rebellion plan to carry out disruption protests during tomorrow and Wednesday's morning rush hours.
Williams, who took part in Monday's protest, said at a meditation the night before that humans had declared war on nature.
Scores of protesters took to the streets across London on Monday (local time), demanding the government to ake decisive action on the climate and ecological emergency, playing out around the world at the moment.
At Oxford Circus, a large pink boat was parked in the middle of the junction and Extinction Rebellion activists also glued themselves to that.
Police carried some protesters off Waterloo Bridge.
The protest saw more than a thousand people block off central London's Waterloo Bridge and lay trees in pots along its length.
A group called Extinction Rebellion targeted the Anglo-Dutch oil major as part of a days-long event in which it disrupted public areas throughout London with banners and props. "We must act now".
The movement has received support from actress and activist Dame Emma Thompson and former Archbishop of Canterbury Rowan Williams.
We do not trust our Government to make the bold, swift and long-term changes necessary to achieve these changes and we do not intend to hand further power to our politicians.