A stage collapse on Saturday night (August 13) at the Indiana State Fair killed at least five and injured dozens.

According to a CNN report, just after singer Sara Bareilles' set and midway through country duo Sugarland's set, a sudden gust of wind blew scaffolding and speakers crashing into the crowd.

One concert-goer reportedly said the stage "snapped like a toothpick," as audience members rushed to the heaps of metal to try to free those trapped. Makeshift stretchers were created out of parts of their seats to take the injured away from the scene.

Bareilles said on her Twitter account: "Fortunately we are all safe, but a tragic stage accident has injured some folks in indiana. Our prayers are with them and their families."

An hour later she wrote: "I'm speechless and feel so helpless. Please send love and prayers to Indianapolis tonight. My heart aches for the lives lost. #indyiloveu."

Sugarland's Twitter feed also said: "We are all right. We are praying for our fans, and the people of Indianapolis. We hope you'll join us. They need your strength."

The tragedy follows a July stage collapse at a Cheap Trick concert in Canada, and a storm-driven collapse at a Flaming Lips concert in Oklahoma earlier this month. No one was seriously injured in either incident.

Watch Channel 4's footage of the stage collapse here: