Children thought to be as young as 10 have pelted police with stones during trouble at a republican Easter commemoration in Derry.
PSNI came under attack after the 32 County Sovereignty Movement event at the City Cemetery earlier today.
In a statement police said it was a "sad indictment on those who organised and were in attendance".
"Police will be making further enquiries following an illegal parade which took place as part of a small scale event in the city cemetery this afternoon," it said.
"Officers issued two verbal warnings to those taking part in the illegal procession.
"While the event passed off without incident it was extremely concerning to see children, some of whom looked to be under the age of 10, throwing stones at police vehicles."
Otherwise the event organised by the 32 County Sovereignty Movement passed off without major incident and there were no reports of any injuries.
Unlike previous years, there was no statement read by masked paramilitaries.
Around 200 people attended the rally.
One of the speakers was Dermot Ryan, the brother of murdered Real IRA leader Alan Ryan who shot dead in Dublin last year.
He spoke on behalf of republican prisoners inside Maghaberry prison in Co Antrim.