A primary school pupil was among three children arrested by police in connection with disorder in Derry last month.
Police said three boys - one aged 10 years old, and two boys aged 13 - were questioned on offences including riot.
It comes after searches were carried out in relation to the trouble that broke out in the Nailors Row area of Derry on August 10.
Police officers were injured during the disorder, which saw fireworks, petrol bombs and other missiles thrown by youths at police lines.
The attacks came after the annual Apprentice Boys Relief of Derry parade, which marks the anniversary of the ending of the Siege of Derry in 1689.
In a statement, a PSNI spokesperson said police investigating the disorder had conducted searches on Thursday.
“As part of the investigation into the disorder, which is being led by detectives from North West Criminal Investigation Division, four searches were conducted at addresses in the city-side,” she said.
“A number of items were seized.
“Three boys - one aged 10 years old, and two boys, both aged 13, were arrested on offences including riot. All three boys have been bailed.
“The investigation continues.”
