Windsor police are on the lookout for a man who attempted to rob a pharmacy Thursday afternoon.

According to police, a man entered the pharmacy at the Ottawa Street Medical Centre at around 3 p.m. ET Thursday.

The man threatened a clerk with a knife and demanded drugs.

Staff gave the man a package and he left.

Police didn't say what was in the package.

The man is described in his 20s, approximately 177 centimeters tall, or about five-foot-eight, and was wearing a hooded-green parka.