A localized power outage caused some areas of the center to be without power.
PSE&G said the outage was caused by an issue with equipment internal to American Dream's electrical system and is working to restore service.
Most stores are closed because they do not have power.
Only emergency lights are on inside, and the restaurants had to close.
A utility company is working to restore service, officials said.
"All guests were safely evacuated from park rides," a statement from the American Dream said.
The mall section is not officially closed, but new vehicles are not allowed inside the parking garage.
This is a developing story.