Two police officers were hospitalised Monday when Loyalist protesters attempted to force their way into Belfast City Hall after the council voted not to fly the Union flag outside the building all year round.
A security guard and a photographer were also hurt when the trouble erupted immediately after councillors voted to fly the flag only on 15 days during the year.
Scuffles also broke out in East Belfast where extra police were deployed in the Lower Newtownards Road area.
Two policewomen were taken to hospital, but a police spokesman said the injuries were not believed to be life threatening.
Trouble flares in Belfast after flag vote
