Jacinda Ardern won't say whether more than two Labour Party employment matters are under scrutiny

Aggrieved MP Gaurav Sharma's again taken to social media this afternoon - sharing messages he claims te be by fellow MPs feeling 'poisoned' by Parliament's culture.

There are separate reports a staffer has made allegations of erratic behaviour against Tukituki MP Anna Lorck.

Jacinda Ardern told reporters she's aware of those two claims - but had no information on any other potential cases.

She says she's been asked to give numbers - but doesn't necessarily know.