NO charges have yet been brought after a large-scale disturbance in Bradford city centre last month.
A total of nine teenagers were arrested in connection with the disorder.
Officers attended Market Street shortly before 4.30pm on September 25 after they received reports of a group of males in balaclavas "acting suspiciously".
A short time later, it was reported that a knife had been seen - with fighting taking place at the back of the city's magistrates' court building.
West Yorkshire Police said armed officers were sent to the scene and a 16-year-old boy was arrested on suspicion of possession of a knife in a public place.
A knife was also seized at the scene by officers.
Another six people were later arrested - three 16-year-old girls, a 17-year-old boy and two 18-year-old boys - for offences including violent disorder, assaulting an emergency worker and criminal damage.
News of further arrests subsequently emerged, with two 17-year-old boys being held on suspicion of violent disorder and assault.
West Yorkshire Police has today confirmed that all those arrested remain on police bail.
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