BBC Radio 1Xtra cancelled its Live event in Birmingham on Saturday night after a man was slashed during a backstage incident.
West Midlands Police tweeted about the situation, saying the Arena Birmingham alerted them to an assault which took place in the backstage area at 10pm on Saturday.
They said: “It’s understood that a man sustained a slash wound during the assault. He was treated by on-site medical staff and did not require hospital treatment.”
The BBC added: “We are upset and saddened that something like this should happen to a guest at one of our events and we remain in close contact and continue to offer our full support.”
Performers for the night included Krept and Konan, Wizkid, AJ Tracey, French Montana, Ms Banks, Jaykae, Headie One and Aitch.
The concert was sold out at the city-centre venue which holds over 15,000 people.
Rapper Krept 'is stabbed backstage' in knife brawl as Radio 1Xtra Live show ends in chaoshttps://t.co/waUtH3YpyU
— Daily Mail U.K. (@DailyMailUK) October 6, 2019