Brazil Bleacher Collapse VIDEO: More Than 100 Hurt In Parana

09/21/2010 11:27 am ET | Updated May 25, 2011

Spectators of a car race in Brazil on Sunday were taken off guard when the bleacher they were sitting in collapsed.

Some 111 people were injured, 22 critically, in the bleacher collapse, according to emergency officials. The cause remains under investigation but authorities believe that structural problems were likely to blame.

The collapse took place at Quatro Pontes Stadium in the state of Parana, southern Brazil.

Watch raw video footage of the Brazil bleach collapse below: