47 police hurt in parade clashes
They were attacked with petrol bombs, fireworks, bricks and bottles during hours of disorder at Carlisle Circus.
The PSNI said the initial violence involved up to 350 loyalists. Four officers were taken to hospital, Kazinform has learned from BBC.
After the parade took place there was trouble between loyalists and republicans, according to the police.
One policeman remains in hospital with injuries that are not life threatening.
Tensions had been high following disturbances at a loyalist march in the same area last weekend.
In a statement on Monday, the Police Service of Northern Ireland (PSNI) officer in charge of the operation, Chief Supt George Clark, said: "I am both angry and sad that my officers have been subjected to such significant attack.
"They showed tremendous courage in the face of enduring violence."
He added that those responsible would be "held to account for their actions".
He added: "We had a plan in place to deal with, what we thought, might happen. We were not dealing with a situation in which we had a notified protest. We were not expecting to see protesters out onto Clifton Street."
The PSNI used water cannon to disperse rioters and said calm was restored to the area at about 02:00 BST on Monday. Most of the violence was centred in Denmark Street and the Antrim Road.
Up to 300 people had been expected to take part in the parade organised by the Henry Joy McCracken Flute Band.
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