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Four police officers were injured as trouble broke out in Newcastle following Sunderland's 3-0 win over Newcastle United at St James' Park.

Bottles were thrown and bins set on fire as mounted officers tried to move crowds back to allow visiting fans to be escorted to Metro and rail services.

Northumbria Police said 29 arrests were made during the game itself.

A spokesman said officers were studying CCTV footage of the city centre to identify the troublemakers.

There was disruption to Metro services while police restored order.

A British Transport Police spokesman said three of its officers were injured while Northumbria Police said one of its officers was also hurt.

None of the officers is thought to be seriously injured.

Police said Sunderland fans travelling on official coaches had safely returned to Wearside.

Fans had been warned prior to the game that any incidents would be firmly dealt with.

Sunderland's win was their first on Tyneside in almost 13 years.