A scuffle appeared to break out in the crowd as Labour finance spokesman John McDonnell was declared winner in Hayes and Harlington.

Cries of "liar" and "terrorist" rang out as Mr McDonnell was giving his acceptance speech. Police had to intervene to temper the disturbance.

The Labour veteran said: "It is quite clear that there are fears also now for our democracy and the rise of the extreme right.

"But I say now we will organise and we will ensure this type of democracy will reign, and the democratic wishes of our people will be respected, and this sort of extreme right wing violence will not be tolerated within our society."