A Swedish climate academic has been refused entry to the UK ahead of a planned appearance alongside the co-founder of Palestine Action, an organisation proscribed as a terrorist group.

Andreas Malm, an academic at Lund University in Sweden, is a vocal critic of Israel and has repeatedly voiced support for the Palestinian movement.

The Home Office said it does not comment on specific individual cases.

Malm told BBC Radio 4 that he was notified by the Home Office that his "presence in the UK is not conducive to the public good", though no further details were provided.

He suggested the decision was linked to a panel event next Wednesday hosted by a socialist magazine, where he was scheduled to speak about the war in Iran alongside Palestine Action co-founder Huda Ammori. Malm emphasised that he has not publicly endorsed, promoted or financially supported Palestine Action.

"I've been going back and forth to the UK for years, for decades, to do my scientific work, my archival research, my participation in conferences. This is the main purpose of my visit to the UK this time too," Malm said.

"What this means is that I am banned from doing my work as an intellectual, as an academic."

Asked by the BBC whether the exclusion might relate to past statements in which he described Hamas's 7 October attack on Israel as "an act of liberation", Malm accepted "it could be".

Malm is best known as the author of How to Blow Up a Pipeline, a book advocating radical measures to combat fossil fuel extraction.

The Supreme Court is scheduled to hear an appeal next week regarding the proscription of Palestine Action under counter-terrorism laws, which makes expressing support for the group a criminal offence.

In June, British authorities also prevented Turkish-American left-wing media commentators Cenk Uygur and his nephew Hasan Piker from entering the UK for public speaking events.

Britain has additionally placed travel bans on far-right Israeli ministers and barred Israeli nationals from attending a prominent defence studies college in London.