Fourteen people were treated for injuries Saturday night after severe weather conditions caused a pavilion to collapse at a Backstreet Boys concert.

The incident occurred at around 5:30 p.m. local time, while fans waited for the show to begin at WinStar World Casino and Resort in Oklahoma. As pointed out by KOCO-TV, Backstreet Boys members Kevin Richardson and Nick Carter confirmed the injuries via Twitter: 

In a statement to Entertainment Tonight, WinStar confirmed 14 people were treated for injuries at the scene and then immediately rushed to the hospital; two of the injured concertgoers have reportedly been released.

"All patrons in the area were asked to move and to seek shelter from the storm. However, about 150 patrons who were standing in line for the Backstreet Boys concert did not heed staff's warning," the venue wrote in the statement. "The storm hit and knocked over the concert entrance trusses with 70-80 mile an hour winds and heavy rain.

Backstreet Boys ended up canceling their sold-out show. “We never want to put our fans in harm’s way and with tonight’s weather and the injuries from earlier, we have decided to cancel the show and will attempt to reschedule," the band said in a statement. "The most important thing is for everyone to get home safely and we will see you all very soon!”