[1/3] A road sign at a roundabout on the border between Northern Ireland and Ireland with directions to Belfast and Dublin is seen in Carrickcarnan, Ireland, May 19, 2022. REUTERS/Clodagh Kilcoyne/File PhotoLONDON/BELFAST, Feb 24 (Reuters) - Britain's foreign minister James Cleverly said London would not sign off on a deal with the European Union over changes to Northern Ireland's post-Brexit trading arrangements without the backing of its biggest unionist party. Cleverly told Times Radio on Friday that Britain's negotiations around the Northern Ireland Protocol were focused on addressing the concerns of the Democratic Unionist Party (DUP). But London needs the support of the DUP if a deal is to restore Northern Ireland's power sharing government that the DUP is currently boycotting over its opposition to the protocol. Naomi Long, the head of the province's cross-community Alliance Party, told Reuters it was wrong to give any individual party what appeared to be a veto on Northern Ireland's future.

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