Newport Beach police have questioned four people in connection with a scare at a movie theater that occurred when someone started a leaf blower that many mistook for a chainsaw.

The Orange County Register reported Wednesday (http://bit.ly/1fa0zma ) that no arrests have been made but the four are cooperating with investigators. Police say they turned themselves in for questioning after surveillance photos were released.

Investigators had previously described the people in the photos as from 15 to 20 years old. Police spokeswoman Jennifer Manzella says detectives are not treating the incident as a harmless prank.

Three people had minor injuries in the panicked rush to get out of the theater during the showing of "The Gift" Sunday night. Police responded to multiple 911 calls.

The suspects fled through an emergency exit.

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Information from: The Orange County Register, http://www.ocregister.com