About 2,000 people have been evacuated from a Nottingham music venue after an unknown substance was released into the crowd.
Police were called to the Rock City club on Talbot Street at about 9.30pm on Friday after receiving reports that pepper spray had been discharged during a performance by the American rapper Lil Pump.
The venue was swiftly evacuated by officers and staff, with medical and fire crews on the scene. About 20 people were treated for minor injuries.
Police said they had launched an investigation into what had happened, but did not consider the incident to be terror-related.
A spokesman said: “We would like to thank those who were attending the event for their quick thinking, assisting our officers with the evacuation and helping one another get out safely.
“It is usual for events like these to be recorded on mobile phones and cameras, and officers are appealing to anyone with footage in and around the venue at the time of the incident to contact us.”
The management of the venue said in a statement that it was working closely with the police.
“We’d like to thank everyone attending the Lil Pump gig for cooperating with our staff so quickly as they worked to evacuate the venue after we stopped the show to ensure public safety … Live music is made to bring people together and it is incredibly sad when this type of action ruins the event for everyone.”
The venue had reopened after being given the all-clear by the authorities.
