EU leaders are expected to hail a breakthrough in efforts to strengthen integration in the eurozone.
However, decisions at the EU summit in Brussels to set out a range of checks and balances on eurozone banks also raise new questions about a two tier Europe.
British banks will not to subject to the new centralised scrutiny, continuing to be supervised by national authorities.
Most of the other nine non-eurozone states are considering whether to submit their banks to the new economic crackdown.
Only the UK and Denmark are able to formally opt out of joining the euro.
More top news
The foreign secretary has criticised internet and social media giants for failing to detect and remove extremist material posted online.
Charities that receive money from EU structural and investment funds will be hit hard by Brexit, according to a House of Lords committee.
The family of the police officer who was murdered in the Westminster attack have thanked those who were with him 'in his last moments'.