EU leaders said they can do no more than reassure the UK they do not want to trap it over Ireland, but May might need more than that to get the Brexit deal through parliament.

Migration was overshadowed by Brexit at the EU summit, with leaders stuck on key legislation. Some warned that free movement could be at risk.

European Commission president said EU leaders should also look at their own responsibility in spreading disinformation.

The last working week before Christmas will see a flurry of ministerial activity in Brussels, with debates on agriculture, fisheries, energy, and environment.

Germany and the US have defended Kosovo's "sovereign right" to create an army, despite Serbia's abhorrence of the move.

As Europe heads into election year, EU leaders need to secure the vote from social media manipulation and foreign attacks.