Jeremy Corbyn is a patron of the Peace in Kurdistan campaign which is part of a web of UK-based groups linked to the PKK, a separatist militia

Jeremy Corbyn and some of his closest Labour allies are linked to a network of campaign groups lobbying for the Kurdish terrorist group that killed 44 people in Istanbul last weekend, The Times can reveal.

Mr Corbyn and Kate Osamor, the shadow international development secretary, are patrons of the Peace in Kurdistan campaign, part of a web of UK-based groups linked to the Kurdistan Workers’ Party (PKK). Unison, a Labour-affiliated union, is also linked to the campaigns.

The PKK, a separatist militia with Marxist leanings, has been fighting a violent insurgency against the Turkish state since the early 1980s. It has been listed as a proscribed terrorist organisation in the UK since 2001, partly due to its involvement in European drug-trafficking networks.

The PKK called