American Dream, in an update on Twitter, pushed back the water park’s reopening to Friday at the earliest. It initially said the water park would be closed from Monday through Wednesday.
The decorative helicopter fell just after 3 p.m., New Jersey State Police previously said.
The prop helicopter crashed into a pool at DreamWorks Water Park, injuring four people on Sunday afternoon. (@jonnyvsbdikd via Storyful)
One patron was hospitalized while three others were treated at the scene for minor injuries. Police said none of the injuries were life-threatening. The ages of the victims were not immediately released.
All guests were evacuated from the venue, and an investigation is ongoing, police said.
Police said no additional details were immediately available.
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A mall spokesperson said in a statement obtained by FOX5 New York that the "safety of our guests is our highest priority" and that a "thorough investigation" into the incident will take place to ensure the park meets all safety requirements.
DreamWorks Water Park was closed through at least Friday as officials investigate the incident. (FOX5 New York WNYW)
American Dream asked guests who purchased tickets in advance to check their email for more information.
The American Dream mall is located about 13 miles west of New York City in the Meadowlands Sports Complex.
The Associated Press contributed to this report.