Organisers said they plan to "non-violently disrupt Tube services to highlight the emergency of ecological collapse".
A man dressed in a dark suit and a woman wearing a black jacket stood on the roof of a train at the Docklands Light Railway (DLR) station in Canary Wharf, holding a banner which read: "Climate Emergency".
Travel disruption has been reported at a busy commuter station in London as a third consecutive day of protesting over climate change has got underway.
The protests were organised by the campaign group Extinction Rebellion, which was established past year in Britain by academics and has become one of the world's fastest-growing environmental movements.
"Intentional arrests for criminal damage allow Extinction Rebellion to take this core strategy into the courts", the group said in a statement on Monday.
The protesters want the Labour leader - who lives in Islington, north London - to commit to tackling climate change.
Jet Airways seeks emergency funds, operates only 5 planes
Jet Airways aircrafts are seen parked at the Indira Gandhi International Airport in New Delhi, India, April 13, 2019. On April 15, lenders did not take a final decision on providing emergency funds to the cash-strapped carrier.
Wednesday Severe Weather Threat
Once that occurs, storms will start developing most likely west of Fort Worth in Palo Pinto or Parker County and move eastward. The storms are expected to reach Alabama in the form of a squall line ahead of the actual cold front.
Jet Airways suspends operations as banks reject emergency funding
Earlier this month , the airline's fleet was significantly reduced to just five aircraft and forced to suspend global operations. The National Aviator's Guild (NAG), Jet's pilots' body, also asked Prime Minister Narendra Modi to help save 20,000 jobs.
He added: "We are here because we are supporters of Jeremy Corbyn and he is the best hope this country has got to get us out of this".
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.
He said he would work with TfL, the Met and the British Transport Police to minimise disruption.
Susannah Trevelyan, who claimed to be the great, great, great granddaughter of English naturalist Charles Darwin, told CNN said that she was willing to be arrested for the cause.
Campaigners have been ordered to restrict their protests to Marble Arch after they caused widespread...
Protesters attached themselves to vehicles and to each other using bicycle locks, said the spokesman.