The North's Police Ombudsman has launched an investigation into an incident in which it appeared an RUC Land-Rover mounted a pavement and was driven at a group of children.
The incident, which was captured by a television camera, is one of a number arising from disturbances around the Twelfth of July being investigated by the ombudsman's office.
It took place in north Belfast on July 13th, at the scene of the most severe rioting in the North in recent years.
The ombudsman, Ms Nuala O'Loan, has the power to initiate investigations without receiving an official complaint. This is the first time she has done so in circumstances relating to civil unrest.
The ombudsman's office has also received three complaints relating to the Ardoyne disturbances and 10 arising from police behaviour during a disturbance in the Edgarstown area of Portadown on the night of July 11th. Most complaints allege assault by police officers.
The ombudsman's office is also investigating the circumstances behind the discharge of plastic baton rounds in both disturbances.
The inquiries are expected to last for up to a month.
A large majority of people in the North (83 per cent) have no complaint about their treatment by the police, according to a survey conducted by the Police Ombudsman's Office.
However, 17 per cent of 1,076 people interviewed said a police officer had behaved in an unacceptable manner towards them.
Some 22 per cent of Catholics questioned for the survey reported unacceptable behaviour, as opposed to 14 per cent of Protestants.
Since the opening of her office last November, Ms O'Loan has received 3,000 complaints from the public.