Essex OPP has one person in custody and is searching for another after an alleged robbery at a pharmacy in Harrow.

According to police, two men entered a pharmacy around 12:15 Thursday and demanded narcotics. Officers say one suspect was arrested a short time later, and a second is now being sought.

The OPP canine unit is on scene to help with the search.

According to the Greater Essex County District School Board, OPP requested Harrow District High School and Harrow Public School be put on a hold and secure. They have since been released.

No injuries have been reported.