KASABIAN say their Belfast gig was cancelled minutes before they were due on stage after their frontman was taken to hospital suffering from "severe vomiting".
The rock band was set to headline the Custom House Square concert on Tuesday when the cancellation was announced about 10 minutes before they were due to perform.
Many concert-goers expressed their disappointment with the last-minute cancellation, with some booing fans seen throwing pints and plastic cups at the stage.
Organisers said they were working to re-schedule the concert and that tickets will remain valid for the new date.
In a statement online, Kasabian apologised to their fans for the cancelled performance.
They described how shortly before the scheduled show, their lead singer Tom Meighan "could hardly stand up let alone sing" after feeling ill.
"Absolutely gutted to have to cancel last night's show in Belfast. We were all at Custom House Square, ready to go on stage when Tom suddenly went down with severe vomiting and could hardly stand up let alone sing," they said.
"He was taken to hospital, put on a drip and told to rest up. We had no option but to cancel and we're sorry to our fans and anyone that travelled a long way.
"Thanks so much for all your messages of support. Details on the rescheduled date to follow soon xx."
In a statement, the concert's organisers said Kasabian had to cancel the gig "due to a last-minute illness".
Re last night's Belfast show pic.twitter.com/JZFH1ipLhl
— KasabianHQ (@KasabianHQ) August 23, 2017
A spokesman said: "We are working at this minute on scheduling a new date for Belfast. We will communicate with all ticket buyers via Ticketmaster and on the Custom House Square social media.
"Tickets will remain valid for the new date. We apologise for any inconvenience caused."
