RTÉ News has announced that David McCullagh is to join Caitríona Perry as a presenter of the RTÉ Six One News.
The journalist and Prime Time presenter, who also co-hosts the This Week programme on RTÉ Radio 1, will take up his new co-presenting duties in September.
Announcing the new appointment, Director of RTÉ News and Current Affairs Jon Williams said: "David is one of Ireland's most formidable journalists. For seven years, at Prime Time, he’s sought answers from scientists to Taoisigh, moderating - with Miriam - our Election 2020 Leaders’ Debate, and helping the programme reach some of the biggest audiences in its history during the Covid-19 lockdown."
Mr Williams said "there could be no one better equipped to join Caitríona on Six One as Ireland emerges from this emergency facing some difficult challenges, and heads towards the centenary of the foundation of the State".
David McCullagh said he was looking forward to joining the Six One team "and continuing the work of our much loved colleague, Keelin Shanley".
Journalist and presenter Keelin Shanley died following an illness in February this year, aged 51.
David said that over the last number of months "viewers have turned to RTÉ News and Current Affairs in astonishing numbers", and that the need for "accurate information" had never been greater.
David graduated with a PhD in politics from UCD and is the author of four books on the history of Irish politics.
He worked at the Evening Press before joining RTÉ in 1993.
The Dublin native was later appointed as RTÉ Political Correspondent before joining Prime Time in 2013.
Speaking about David’s appointment today, Six One co-presenter Caitríona Perry said she was "excited about our new partnership" and said she looked forward to working with David and the team to "take the programme into the next phase".
From September, Ray Kennedy will present the weekend editions of the Six One News and the Nine News, becoming the face of weekends on RTÉ News.