There was a stand-off last night between about 200 loyalists and republicans in the Ardoyne area of north Belfast.
It's been the scene of violence in recent years - during the annual summer marching season, as it's the route of one of the North's most highly contentious 12th of July parades.

There were scuffles between police officers and nationalist protesters on the Crumlin Road following a parade there.
Elsewhere, parades marking the Twelfth passed off virtually without incident.
The PSNI's Assistant Chief Constable released statement saying he's pleased the parades passed off largely successfully, following months of preparation by the PSNI together with many groups and community partners.