Sinn Féin celebrates victory but DUP warns over Northern Ireland protocol

DUP will refuse to join new administration until UK government addresses post-Brexit trade border

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Sinn Fein is celebrating a historic victory in the Stormont assembly elections despite warnings from the Democratic Unionist party that it will block the formation of a new power-sharing executive until the Northern Ireland Brexit protocol is changed.

As counting continued before the final allocation of seats, it was clear that Sinn Fein, with 29% of first-preference votes, had overtaken the DUP, which had 21.3%.