Nearly 50 People Hospitalized After Wal-Mart Evacuation

Police in Germantown, Wisconsin plan to review surveillance video in an attempt to find out who is responsible for releasing a chemical believed to have made nearly 50 people sick at a local Wal-Mart.

Twenty-five people were taken by ambulance to area hospitals Thursday. Twenty-two others went on their own to the hospital to be treated for respiratory problems and other health effects.

The Wal-Mart was evacuated after customers began feeling ill. Germantown Police Chief Peter Hoell says a substance believed to be responsible was found on the floor of the store. Hoell would not identify the substance.

Federal agents are assisting in the investigation.