The New South Wales Greens party has been ‘infiltrated by extreme left forces’, according to NSW Greens MP Cate Faehrmann.

The comments come after the party forced fellow MP Jeremy Buckingham to resign amid accusations of sexual violence against a former employee.

Ms Faehrmann says the MP was effective in his role and alleges the party used deliberate manipulation tactics to wear down fellow MPs, ‘one-by-one, and bully them into submission.’