THACKERVILLE, Okla.  — An Oklahoma casino says 14 people suffered cuts and bruises when a powerful rainstorm toppled entrance trusses and disrupted the start of an outdoor concert by the Backstreet Boys.

Kym Koch-Thompson, spokeswoman for the WinStar World Casino and Resort, says the concertgoers were treated at the scene following Saturday’s storm, then taken to hospitals in Oklahoma and Texas. She says they were all treated for minor injuries and released.