The feud between warring Sunrise presenters Samantha Armytage and Natalie Barr escalated on Monday, with former anchor Sam firing off a brutal tweet describing her successor as desperate for the top job.

After brushing off a question about their rivalry on The Kyle and Jackie O Show that morning, the 44-year-old criticised Natalie on Twitter for continuing to speak about her in the press three months after taking over as host of Seven’s breakfast show.

‘Look, I’m out. Nat’s wanted the job forever… and she’s finally got it. She just needs to get on and enjoy it – and forget about me (even though I’m unforgettable,’ she tweeted, adding the hashtag #PeaceOut.

Sam was co-anchor of Sunrise from June 2013 until March this year, when she…