Three NYPD officers were hospitalized after drinking milkshakes that may have been contaminated.

According to the Police Benevolent Association, the officers were assigned to work a protest in Manhattan Monday when they stopped at the Shake Shack on Broadway and Fulton Street.

The officers became sick and say they thought bleach was added to their drinks.

The NYPD determined that there was no criminality by employees.

They believe a cleaning solution used to clean the machines wasn't fully cleared and may have gotten into the officers' drinks.

All three officers were treated and released from the hospital