Prosecutors have opened a manslaughter investigation into the collapse of a stage being constructed for a Madonna concert in Marseille, France that claimed the life of two men and injured eight others.

The Associated Press reports that an investigation for manslaughter and involuntary work-related injuries has been opened and that initial hearings would begin on Sunday or Monday.

A French worker was killed immediately following Thursday's stage mishap, and a British worker passed away on Friday, the AP reports. Eight others were injured as a result of the collapse, one of them in critical condition and four others in serious condition.

Madonna canceled her Sunday scheduled performance, but released the following statement to ET about the incident:

"I am devastated to have just received this tragic news. My prayers go out to those who were injured and their families along with my deepest sympathy to all those affected by this heartbreaking news."