Gunmen sprayed bullets at revellers after storming the party inside a walled garden in the city in Coahuila state, across the border from Texas.

BBC: Seventeen partygoers shot dead in Mexico

The immediate result has been two unionist parties storming out of the multi-party talks in Belfast, and the largest unionist party, the Ulster Unionists, probably scuppering the current talks format by voting against the decommissioning plan (see article).

ECONOMIST: The Belfast express