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There is also violence in Derry, Newry, Newtownabbey and a car is set on fire in Belfast.

Derry City and Strabane District Council, which manages the artwork, said design work for the repair has been completed.

Maurice Devenney, Derry's then mayor, said then that it "reflects positively how the city is moving forward" as it prepared for its year as UK City of Culture.

"With the people of Derry/Londonderry not having to pay for the electric," Deirdre added.

"Our hope and intention was that it would make an enduring contribution to the Derry cityscape - a positive and peaceful space where people could gather, somewhere where Derry citizens could continue to develop a sense of collective belonging for years to come."