Eight police officers have been injured following a night of serious disorder at an anti-internment bonfire in west Belfast.
Paint bombs, bottles and other items were thrown at police in the Divis area overnight. The Lord Mayor of Belfast, Sinn Fein's Máirtín Ó Muilleoir condemned the violence.
Disorder also flared in North Belfast, where a man attacked police with a sword. Police are also investigating reports that a stolen loyalist artwork has been placed on top of the bonfire. In a statement, the PSNI said:
A thorough investigation is now underway to identify all those involved in the disorder.
Later thousands are expected to take part in a march through the city centre to commemorate internment, which began on August 9 1971 when the army arrested 342 people suspected of being in the IRA and held them without trial.
A total of 1,981 men and women were interned while the policy lasted.