The Wallasey Constituency Labour Party group (CLP) has been suspended following complaints of bullying and intimidation.
The Labour Party has launched an investigation into the allegations in former Labour leadership contender Angela Eagle’s constituency.
The Wallasey MP said “bullying, intimidation, misogyny and homophobia have no place in the Labour Party”.
Kathy Runswick, chair of the CLP, said she was “astonished” at the suspension.
A North West Labour spokesman said: “Any complaints of bullying or intimidation and allegations of misconduct are always taken very seriously.”
Wallasey CLP’s vice chair, Paul Davies, who denies any intimidation took place, said no allegations had been put to the local party.