A midlands TD also says certain protests are getting violent.
The Foreign Affairs Minister says social media companies need to do more to tackle Covid 19 conspiracy theories.
Simon Coveney was responding to this weekend’s violent demonstrations in Dublin which he described as thuggery.
There are concerns further far-right protests are being planned for St Patrick’s Day.
Some Facebook pages which help to spread misinformation have grown in membership by 90 percent since the summer.
Minister Coveney says social media sites need to take responsibility for spreading conspiracy theories.
Sinn Féin's Sorca Clarke says it's not just one group involved.
The Longford-Westmeath TD syas there's been a common theme among five or six recent demonstrations:
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