Big Brother's Rylan Clark-Neal and Brian Belo have got into a Twitter spat.
It follows former Big Brother housemate Brian lashing out at the show - and hosts Rylan and Emma Willis.
In a series of messages, Big Brother 8 winner Brian accused the presenters and producers of 'ruining' the series.
Taking aim at Rylan in one tweet in particular, Brian wrote: "If Big Brother is about to get axed, then I'm going to have to say, I don't care, if your profile is higher than mine and you do @thismorning and you are in The British Media Circle clique!
"You guy's as hosts are not very good and you're ruining Big Brother @bbuk @endemolshineuk"
Brian's comments followed him slating Emma, posting: "It's like, we all get that you wanted to be Davina! But there's only one Davina! It's too much to take now! Davina done @bbuk so now your doing it, she done Popstars: The Rivals, so you do TheVoice .. Davina does L'Oréal adverts, so now you do L'Oréal adverts. It's like *!£%-off!""
He went on to say that Big Brother needed "new people to come in who know what they are doing" in order to save the show, which currently faces the axe.
Responding on Twitter, Rylan defended himself and his "loyalty" to Big Brother.
The Celebrity Big Brother winner wrote: "Hve a view on me as host by all means but DONT EVER question my loyalty or love for BBUK I adore the show and have done also since 2000 We all love Davina but Emma is an amazing host also and always has been.
"I wish him [Brian] nothing but the best but never question my love for BB. Night"
Big Brother airs on Channel 5.