11:10 30 October 2015
The first batch of tickets for Harry Potter and the Cursed Child performances from 7 June – 18 September 2016 went on sale at 11:00 GMT and sold out in several hours. A second batch of tickets will be released and will be made available to fans who registered for priority booking.
The play, which was billed as the "eighth Harry Potter story and the first official Harry Potter story to be presented on stage", is based on an original JK Rowling story and was co-written by Jack Thorne and director John Tiffany.
Many fans have experienced technical difficulties as more than 120,000 individuals tried to buy tickets online, as confirmed by the producers.
Some fans expressed their frustration on Twitter.
Em Maree wrote: "Finally got my three tickets for the #CursedChild play but am shocked by the shambles that was the booking. 4 hours is a joke!"
Nikki Alden was one of many people reporting being bumped out of the queue, writing: "There was and error on the site right before I was about to pay for my tickets and now I'm 33,084TH in line!!!"
Another fan, Lisa Cooke wrote: "This play better blow my mind @jk_rowling @HPPlayLDN ... Never been so stressed buying tickets before
#CursedChild."
Producers told the BBC "the vast majority of customers had their bookings processed within an hour."