Northern Ireland voted to Remain in the EU, Sinn Féin President Gerry Adams said.
Sinn Fein has called for a referendum on a united Ireland after accusing English voters of "dragging Northern Ireland out of the EU".
He said: "The people in the north voted to remain, they made that very clear."
He added: "Our interests, north and south, would not be served by one part of the island being out of the EU and another being part of the island being in the EU."
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