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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Two private citizens have already paid a "significant deposit" to take the week-long trip.
Slippy start tomorrow with frost & ice
The court will determine how much the UK government and travel firms knew about the risk of an attack on tourists holidaying in the area.