Twelve people in Westminster are abusing others and "getting away with it", an MP has claimed.

Labour's Jess Phillips called for a "massive overhaul" of Commons management in the wake of a damning report into bullying in Parliament.

She also out at Tory James Duddridge (Rochford and Southend East), a critic of Commons Speaker John Bercow, accusing him of using the probe for his own agenda.

In a fiery intervention following an urgent question on the findings of the review by Dame Laura Cox QC, Ms Phillips said: "I just feel totally and utterly maddened by this: I'm not here to defend anybody, including you Mr Speaker.

"I have spoken to hundreds of the people involved in this throughout the process - I notice that the neither Right nor Honourable in my opinion, he probably isn't either anyway, Member for Rochford (James Duddridge) has probably spoken to none of them.

"And some of us don't actually care who it is, who is the offender, it is the victims that we care about and we will not use it for political gain.

"And nothing fills the victims with more dread than when people play with their feelings - so don't do it. Don't do it in here, don't do it for them: you are speaking only for yourself.

"I personally think that the management of this place probably needs a massive overhaul - I'm not going to point the finger for the sake of newspaper headlines.

"But the fact of the matter is that nothing I have heard today fills me with any hope that politics will be taken out of this and that the same 12 people - and we all know exactly who they are and exactly how they are getting away with it - won't just be walking around for the next 20 years."

Mr Duddridge had earlier told the Commons: "This is a disturbing report which identifies a number of unacceptable behaviours.

"Page 64 lists some of them: taunting, mocking, mimicking, deliberately belittling in front of other members, making offensive personal comments about appearance, belittling someone's junior status, making lengthy and humiliating tirades of criticism of abuse in front of colleagues.

"How can we encourage Mr Speaker to stop this behaviour?"

Mr Bercow intervened after Ms Phillips's remarks, saying: "Everybody in this place is honourable, so I'm certainly not suggesting that (Mr Duddridge) isn't an Honourable Member - he's put his view, about which I have made no complaint, and (Ms Phillips) has put her view and the Leader will respond."

SNP Commons leader Pete Wishart earlier said "historic patriarchy practically oozes out of the walls" of Parliament, as he supported calls for an independent investigation.

He said such work must look at the "total culture" of how MPs do their business, including the power relationships which exist and how they address each other.

Commons Leader Andrea Leadsom urged MPs to "treat each other with dignity and respect", and told Ms Phillips: "If she knows of 12 people walking around who are abusing people then she should report them.

"There is now somewhere to report them and she should do so."

Labour's Sir Kevin Barron, former chairman of the Standards Committee, said the report highlighted a "small number of sitting MPs" thought to be involved in "bullying and harassment on a regular basis" as he urged Mrs Leadsom to scrap any time limits on how far back any investigations can go.

Mrs Leadsom said legal advice received when developing the new process suggested it would not be possible to judge behaviour from many years ago, adding she would consider Sir Kevin's request in the six-month review of the new system.