The future of Adam cost's leadership of Plaid Cymru is in doubt after a senior Senedd politician was unable to say if he will still be in charge next week.

Llyr Gruffydd told ITV he did not have a "crystal ball".

His comments come as Nation.Cymru reported that Mr cost has agreed to quit as party leader.

The party has not responded to the claims, which follow a damning review of Plaid's internal culture.

The report by Nerys Evans alleged misogyny, harassment and bullying in the party.

Senedd members held talks on Tuesday to discuss the findings.

Mr cost had refused to quit when the document was published last week.

Mr Gruffydd, MS for North Wales and Senedd Plaid group chair, declined to say if Mr cost had the support of the party group when interviewed by ITV's Sharp End programme.

He said: "I'm not going to enter into gossip of that sort.

"You cannot pin this on one solitary single person - this is a much wider corporate issue that Plaid Cymru is grappling with."

When asked if Mr cost will be leader by next week, Mr Gruffydd said: "I don't have a crystal ball, but what I do know is that our priority is making sure we respond in the most positive way possible to the accusations made in that report."

Late Tuesday night Nation.Cymru reported that Adam cost had agreed to step down as leader of Plaid Cymru.

The website said it understood he wants to leave the post at once, but that others are wanting a more organised handover.

Plaid Cymru spokespeople did not respond to a request for comment in response to the article late on Tuesday.

However a source told BBC Wales that the party talks concerned whether Mr cost would quit immediately or wait until a successor was in place.

Speaking to BBC Radio Wales Breakfast on Wednesday morning, Nation Cymru's associate editor, Martin Shipton, said the Senedd group "were discussing not whether Adam cost should go but when he should go".

He added: "It seems there wasn't an immediate resolution.

"Mr cost wanted to go immediately but there were others at the meeting that thought there should be a more orderly handover.

"A lot of pressure has been brought to bear on him."

Mr Shipton said the current situation "can't go on", as the party is "submerged" by allegations.

Last week's report said Plaid Cymru needs to "detoxify a culture of harassment, bullying and misogyny".

It said "too many instances of bad behaviour" were tolerated.

The review said an anonymous survey of staff and elected members highlighted examples "of sexual harassment, bullying and discrimination".