A Sarnia nurse was charged Wednesday after police allege he stole fentanyl from Bluewater Health. 

Investigators say the 32-year-old man removed an anaesthetic box containing various medications and narcotics from an operating room on Aug. 10. In the following days, he took vials of fentanyl from a medication dispensing machine.

Police launched an investigation after receiving complaints from hospital officials, who conducted an audit of medication after learning of the thefts. 

Officers searched the man's home early Wednesday morning and made the arrest.  

The man is charged with three counts of theft under $5000, three counts of possession of fentanyl and one count of possession of morphine.