The amount of police officers injured in loyalist riots last night in Belfast has been updated to 15.
After city councillors voted 29 to 21 in favour of changing their policy on the Union Flag, there were scenes of violence outside Belfast Town Hall in which 18 people were injured.
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The chancellor now faces the prospect of forming a minority government or calling for a snap election.
The 73-year-old said a return is unlikely "given the politicised atmosphere that seems to have afflicted our set."
Chancellor Philip Hammond said the UK will make a financial proposal to the EU in the next three-and-a-half weeks.