MI-OSHA looking into Michgan's Adventure incident

MUSKEGON, Mich. (NEWSCHANNEL 3) - The Michigan Occupational Safety and Health Administration has launched an investigation at Michigan's Adventure after last week's HAZMAT situation.

On Friday, nearly 30 people were sent to the hospital after a chlorine mishap.

Authorities believe two common chemicals were somehow combined in the pool to form a dangerous chlorine cloud, but an exact cause is yet to be determined.

MI-OSHA officials say this type of investigation may take several weeks or months to complete.