The Democratic Unionist Party submitted a formal complaint to Belfast City Council today over its decision to stop flying the Union Flag over City Hall.
The DUP claims it breaks equality rules, but the council said they'd asked their lawyers and it was fine, complied with an equality assessment and the December 3 decision was made democratically.
Since then largely peaceful protests have repeatedly decended into violence.
The legal bid came a day after North Irish loyalists inaugurated the new Unionist Forum group.
Stormont First Minister and DUP leader Peter Robinson said it was "the most representative group within the unionist community to meet probably in half a century."
He indicated that he would be willing to talk directly with the loyalist paramilitaries that police accuse of orchestrating parts of the violence.
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