Two academics who sued their own union after they claimed it branded them transphobic have had their discrimination claims rejected by an employment tribunal.

Dr Deirdre O'Neill, a lecturer at Hertfordshire University, and Michael Wayne, a professor at Brunel University, were criticised by the University and College Union (UCU) which condemned a film they directed as an attack on trans identity.

Protesters, including some in 'balaclavas', twice blocked screenings of Adult Human Female at the University of Edinburgh and 'hurled insults at those trying to attend', documents presented to the tribunal said.

The academics alleged the UCU's public opposition to them amounted to unlawful discrimination on grounds of their gender-critical belief that there are only two sexes.

But rejecting their claims, Employment Judge Jean Laidler said the union had been 'entitled' to act as it did.