A former senior Soviet KGB spy chief has claimed that Donald Trump was recruited as a spy by Russian intelligence as early as 38 years ago by his department, and given the codename ‘Krasnov’.

In an extraordinary post on Facebook on 20 February, Alnur Mussayev – who used to run the successor to the Soviet-era KGB in Kazakhstan – claimed that he was personally aware of Trump’s recruitment by the agency in 1987.

The recruitment, he said, was undertaken by his own KGB department. One of the key roles of that department was to acquire intelligence through business leaders in Western countries.