Fire destroyed several structures Thursday evening on the grounds of the Renaissance Festival, but officials say they expect to open on schedule later this summer.

The cause of the blaze remains under investigation by state and local investigators, but it broke out as thunderstorms were moving through the area.

The BriefAuthorities are set to speak at 11 a.m. to provide an update on the fire at the Minnesota Renaissance Festival grounds.You can watch the press conference in the player above.About 10 to 20 buildings were destroyed in the fire.