Police have come under attack in a third night of disturbances in Belfast.
Officers were pelted with fireworks and bricks in the Carlisle Circus area in the north of the city.
Riots around the same location over recent nights have left more than 60 officers injured.
Police Service of Northern Ireland Assistant Chief Constable Will Kerr said: "Northern Ireland cannot afford an 11th hour solution."
The senior officer expressed fears that lives could be lost if the issue is not resolved.