The Axe Drax campaign group said an activist “halted the train”, which was carrying wood pellets.
A protester has climbed on top of a train near a power plant in North Yorkshire.
The Axe Drax campaign group said one of its activists “halted the train”, which was carrying wood pellets and heading to Drax Power station in Selby.
Images on social media show the activist, dressed in orange, waving a flag bearing the Extinction Rebellion logo. It comes as the COP26 climate summit in Glasgow draws to an end.
Drax has been approached for a comment.
Axe Drax said the demonstration was being carried out “to send a clear message to COP26 – stop the fell”.
It said no other trains had been affected.
The activist, who goes by the name of Coffee, said: “We need to keep the trees in the ground, we need a U-turn on the decision to phase out deforestation by 2030, we need to slam on the breaks.
“Halt the felling. Bring a moratorium on tree felling for six months whilst a plan is made for a future world economy.”
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