The New York City Police Department has determined that there was no criminality by Shake Shack employees following claims that three officers were intentionally poisoned with bleach. CNN reported that investigators believe a cleaning product used to clean milkshake machines may have accidentally gotten into the officers’ drinks. The three officers were released from hospital after getting sick after they drank milkshakes Monday night. The city’s Detectives’ Endowment Association initially called it a deliberate poisoning, tweeting late Monday: “Tonight, three of our fellow officers were intentionally poisoned by one or more workers at the Shake Shack at 200 Broadway in Manhattan.” The Patrolmen’s Benevolent Association said bleach had been mixed into the cops’ milkshakes. Shake Shack said that it was “horrified by the reports of police officers injured at our 200 Broadway Shack in Manhattan. We are working with the police in their investigation right now.”