More than 100 climate change activists have been arrested for blocking roads in central London, amid protests aimed at shutting down the capital.
The second day of disruption was expected as Extinction Rebellion campaigners camped overnight at Waterloo Bridge, Parliament Square and Oxford Circus.
Police ordered them to restrict their protest to Marble Arch after causing widespread disruption on Monday.
The Met said 113 people had been arrested as of 06:00 BST on Tuesday.
Most were detained on suspicion of public order offences, while five people were held on suspicion of criminal damage at Shell's HQ.
Transport for London warned bus users that routes would remain on diversion or terminate early.
Extinction Rebellion, which is calling on the government to reduce carbon emissions to zero by 2025, wants to "shut down London" until 29 April in a series of protests.
It called for "reinforcements" to help maintain the roadblock at Waterloo Bridge on Tuesday.
Some protesters glued themselves to a lorry parked on the bridge to hinder the police effort to move them on.
About 600 people remained on the bridge at 10:30.