Former Green Party deputy leader Dr Shahrar Ali has launched a second legal claim against the party after he was expelled last year.
Ali, who won a landmark case against the Green Party of England and Wales in February 2024, has accused the party of "procedural abuse", and continuing to discriminate against him for his gender critical beliefs.
The timing of the legal action is likely to cast a shadow over the Green Party's conference in seven days, where internal divisions over gender have already sparked controversy.
A party spokesperson said "we do not recognise the vague claims" made by Ali and it was focusing on political work under the new leadership of Zack Polanski.
In February, a judge found that the Greens had unlawfully discriminated against Ali during a row over his gender-critical beliefs.
Continues at https://www.bbc.co.uk/news/articles/c15k0k448j4o