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.
Irish Coast Guard, RNLI and Water Safety Ireland urge everyone to 'Unite to Turn the Tide
July has been one of the busiest months in years for rescue services, with warm weather bringing more people to Wicklow beaches, rivers and lakes.
Bray Wanderers Head To Cobh Amid Apparent Cross-Channel Interest In Seagulls Talent
New Laws Boost Protection In Wicklow Mountains National Park
A dedicated National Parks Bill will put nature conservation first and help manage growing visitor numbers.
Woman Dies In Waters At Wicklow Beach
The incident occurred on the outskirts of Wicklow town, near the Blainroe golf club.
Wicklow Housing Remains Ireland's Most Expensive Outside Dublin
Strong demand, low vacancy and limited housing stock are keeping county prices elevated.
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