A man was arrested today after eight police officers came under gun attack in Belfast.
The Police Service of Northern Ireland said loyalist gunmen opened fire on three police vehicles last night.
It is understood the vehicles were responding to reports of serious disturbances in the Westland Road area of north Belfast. None of the officers was injured.
Earlier, three people were arrested after street disorder near a pub in the Cavehill Road in north Belfast.
East Belfast assembly member Sir Reg Empey today called for the immediate installation of closed-circuit television cameras after trouble also flared at a sectarian flashpoint area of east Belfast.
Loyalists claimed houses in the Protestant Cluan Place area were attacked with a range of missiles from the nationalist Short Strand area last night.
Sinn Féin councillor Mr Joe O'Donnell claimed the violence had been building up throughout the day following the screening of the Old Firm match in Scotland between Celtic and Rangers.
A police spokesman said a number of petrol bombs were thrown at houses in Cluan Place, but they were quickly extinguished by locals and there were no reports of injuries.
PA