Police have arrested 21 Just Stop Oil protesters following slow marches at 14 locations across central London.
About 180 protesters took to the streets at about 8am this morning. Officers stopped about 20 protesters as they attempted to leave Lambeth Bridge.
Protesters in Victoria, Liverpool Street and Victoria were also stopped by police.
Just Stop Oil says it wants the UK government to halt any new licensing or consents for oil, gas and coal extraction in the UK.