Fans injured at concert

AT least 14 people have been injured after trusses holding up the entrance to a resort where the Backstreet Boys were set to begin a concert in Oklahoma collapsed.

WinStar World Casino and Resort said in a statement posted on Twitter on Saturday that the resort began an evacuation about 5pm when lightning was within 6km of the casino.

The company said about 150 patrons did not evacuate and when the storm hit with winds of up to 130km/h, it knocked over trusses and the entrance collapsed on them.