A Utah sandwich shop employee has been arrested on accusations he put methamphetamine and THC into the drink of a uniformed police officer.

Authorities said Tuesday that a Layton police sergeant immediately felt impaired after getting the drink at a Subway restaurant Monday. He struggled to find the brake pedal of his patrol car at a red light and couldn't answer questions at the police station.

The officer was sent to the hospital. His condition wasn't immediately available.

Tanis Ukena was arrested on suspicion of surreptitiously giving a poisonous substance. He denied the allegations. Authorities aren't saying why they believe Ukena drugged the drink.

It's unclear if Ukena has an attorney, and no listed phone number for him could be found.

The Layton Subway forwarded questions to a national spokesman, who wasn't immediately available for comment.