The brother of the former Labour leader Jeremy Corbyn has disrupted a church service in London. Piers Corbyn told environmental activists that they were ‘working for the devil’ and that man-made climate change ‘doesn’t exist.’

The 75-year-old was seen shouting from the aisle of St John’s Waterloo before telling a vicar to ‘get off’ him as he was escorted out.

The congregation which had gathered for a service to mark four days of climate action, began to sing the hymn “Amazing Grace” to drown out his shouts.

Writing on Twitter, Chine McDonald, director of the Christian think tank Theos, said: “Incredibly moving moment when Piers Corbyn tried to disrupt the gathering, but was gently ushered out by an impromptu collective singing of Amazing Grace, complete with harmonies.

“May have also had a little argument with him for handing out leaflets outside and telling people to pray for more CO2.”

Piers Corbyn believes climate change is caused by lunar and solar phases rather than carbon dioxide emissions.

The church service was attended by representatives from Christian Aid, Christian Climate Action, Tearfund and the Catholic charity Cafod.