Manchester's Co-op Live arena has postponed its opening shows, featuring comedian Peter Kay, as it is not ready.
The venue, which will be the largest in the UK, held its first test event on Saturday but had to cancel some tickets just hours beforehand. Kay was due to perform the first official events there on Tuesday and Wednesday, but the venue said work on its power supply was "a few days behind" schedule.
A statement said: "It is critical to ensure we have a consistent total power supply to our fully electric sustainable venue, the completion of which is a few days behind.
"Rescheduling gives us the extra time we need to continue testing thoroughly. This is vital to satisfy the rigorous set of guidelines and protocols that are necessary for a venue of this size."
The venue will hold up to 23,500 people when fully open, with Kay's performances being rescheduled to today (April 29) and 30. "We are very sorry for the inconvenience that this change will undoubtedly cause for some," the venue said.
"We are thrilled to welcome Peter Kay as our grand opening act just a few days later than planned." Kay said: "I'm truly gutted as I know how disappointing this will be for everyone with tickets - but obviously, it's a brand-new venue and it's important that everything is finished and safe for full capacity audiences.
"Fortunately, we've been able to reschedule the shows and I'll have to miss my bums-and-tums class - but hopefully, I'll see you then."
US rock band The Black Keys were still due to play the arena on 27 April - before Kay's rescheduled dates. The venue said that gig would have a 10,000 capacity and managers would use it to continue to test the resilience of the venue and its operations.
