LA HABRA (CBSLA.com) — Police are investigating who planted a hidden camera in a public bathroom at a fast-food restaurant.

The camera was discovered Friday at a Del Taco restaurant, 751 S. Beach Blvd., La Habra police Sgt. Jose Quirarte said.

READ MORE: Haylee Grisham, Suspect In Death Of Off-Duty Officer, Appears In Court Tuesday

Earlier today, police circulated images of three men seen in video footage, calling them persons of interest, Quirarte said. Investigators later determined the images were of people who found the device and accidentally recorded themselves as they were trying to examine it, La Habra police spokeswoman Cindy Knapp said.

Video of a heavyset Latino man and a woman was also recovered, and they are both considered victims.

READ MORE: Recall Effort Against LA Councilman Mike Bonin Fails To Qualify For Ballot

Del Taco officials said none of their employees were seen on the footage retrieved from the camera, he said.

Anyone with information about the case or the identity of any of the men can call Detective Paul Lucifora at (562) 383-4364.

MORE NEWS: Anaheim Ducks Defenseman, 2 Coaches Enter COVID-19 Protocol

(©2015 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. Wire services contributed to this report.)