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Police have launched an investigation following reports of disorder backstage at the Radio 1Xtra event at Arena Birmingham on Saturday (05/10)

It’s understood that a man sustained a slash wound during an assault at around 10pm and was treated on site by medical staff.

An investigation is on-going to understand the full circumstances of the attack.

Detectives are reviewing CCTV from inside the venue and speaking with potential witnesses.

The investigation is being supported by Arena Birmingham and Radio 1Xtra, who are fully cooperating with the on-going enquiry.

In an unrelated incident officers arrested a 23-year-old man on suspicion of possession of a knife at door six of Arena Birmingham, the man remains in custody this morning.

At present no other arrests have been made in connection with the Radio 1Xtra live event.

Detectives are keen to hear from anyone with information following the alleged disorder and those with information, or who witnessed what happened are urged to get in touch.

West Midlands Police can be contacted via Live Chat at www.west-midlands.police.uk 8am – midnight and the 101 non-emergency number can be called anytime.

To remain anonymous please call Crimestoppers on 0800 555 111 – tell them what you know, not who you are. Please quote crime number 20BW/236014J/19.