The Sunday Independent has dropped long-time columnist and former senator Eoghan Harris, over an anonymous Twitter account.
The paper says he was involved in the running of a fake account that mostly posted about Irish politics.
Editor Alan English says the material would never have been published in the Sunday Independent.
Mr Harris was a big critic of Sinn Féin - and the party's justice spokesman, Martin Kenny, says the paper was right to drop him.
Most Wicklow Residents Unprepared for Retirement, PTSB Research Finds
Wicklow Property Prices Jump €25,000 In A Year As Supply Tightens
West Wicklow To Receive Major Fire Service Investment Under National Capital Programme
Wicklow to benefit from national investment with two new stations and upgraded equipment to boost emergency response times
Tánaiste Announces €40 Million Investment For Blessington Housing Development
The project will deliver 106 new social homes for families and individuals in West Wicklow.
Major Easter Rail Works Set to Disrupt Wicklow Commuters
Commuters travelling between Wicklow and Dublin are being warned of significant disruption to rail services over the Easter weekend.
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