They have long been locked in a bitter war of words over the gender debate.

Now author JK Rowling has penned a scathing review of Nicola Sturgeon’s hotly anticipated memoirs on the day it was officially launched.

The Harry Potter author, who famously wore a t-shirt labelling the former first minister a ‘destroyer of women’s rights’, posted the expletive-riddled assessment of ‘Frankly’ on her website last night.

Ms Rowling tore into the former First Minister’s ‘stubborn’ attachment to her controversial gender reform legislation, her inability to face up to her failures in office and ‘Trumpian’ accounts of political events.

The women’s right campaigner wrote: ‘She remains stubbornly wedded to her belief that it is possible to let some men into women’s spaces on the men’s say so, without letting any man who fancies it come inside.