Just Stop Oil protesters plastered Exeter’s Labour headquarters with posters on Monday 25 March.
Two of the group’s supporters fly-posted the building with posters and printouts of a letter sent to parliamentary candidate Steve Race last week.
The letter asked him to commit to leaving the party within six months of forming a government if they fail to revoke the Tory oil licences granted since 2021.
Mr Race sent a response which refused to commit to the pledge, according to a statement from Just Stop Oil.
Police officers attended the scene on Monday and spoke with the protesters but made no arrests.
