A substance believed to be methamphetamine was discovered in a restroom used by people at the Sundance Film Festival screening room at the Park City Municipal Athletic & Recreation Center, Park City officials said this week.

Ken Fisher, who manages Park City's recreation programs, said a cleaning crew found a pouch in the restroom Sunday morning and brought it to the front desk, where an employee put it into the facility's lost-and-found location. A different employee on Wednesday opened the pouch and found the substance, Fisher said. The employee notified a supervisor and the Park City Police Department was contacted.

The restroom is permanent but it had been part of the festival's setup at the Municipal Athletic & Recreation Center.

The police were notified at 9:46 a.m. on Wednesday. Phil Kirk, a police captain, said the pouch is small, brown and has a zipper. Kirk said the officer who responded opened the pouch and found a clear bag with a white crystal substance inside. Kirk said the police believe the substance to be methamphetamine.

The officer took the pouch and the bag with the substance into evidence. Kirk said the bag and the substance inside weigh a few grams.

The Police Department plans to send the substance to a state lab for analysis. The investigation is continuing.

The MARC Theatre is a heavily used Sundance screening room and is the second largest of the festival's Park City-area theaters. Movies were scheduled there into the night on the Saturday before the pouch was found. The theater is temporarily set up in the Municipal Athletic & Recreation Center's gymnasium.