Latest: Theresa May urges EU to move on 'next stage' of Brexit negotiations

Theresa May will reaffirm Britain's ongoing commitment to European security as she faces further pressure from EU leaders to spell out how she intends to settle the UK's Brexit "divorce bill".

Update 8.45amTheresa May has issued a fresh call for European Union leaders to move onto the "next stage" in the Brexit negotiations.

Arriving in Brussels for the EU Eastern Partnership summit, the Prime Minister said the EU and the UK needed to "step forward together" in the ongoing talks.