A 66-year-old man in Ajax, Ont., who stopped to help a man who appeared to be in medical distress was pepper sprayed and robbed.

Durham Regional Police say that at about 10:45 a.m. Friday, a silver four-door sedan pulled up to the man, who was walking on the sidewalk in the Williamson Drive and Stokes Drive area.

There were three people in the car — a man driving, a man in the front seat who appeared to be in medical distress and a female passenger in the back seat, authorities say.

The woman asked for directions to a hospital, according to police.

When the Good Samaritan leaned in to help, he was sprayed in the eyes and grabbed by the arm. The assailants allegedly stole a watch from the man's wrist, a ring from his finger and a gold chain from around his neck before driving off.

The victim suffered minor injuries and did not require medical attention.

Police requesting more information

Police have described the driver as a man of Middle Eastern descent, between 40 and 45 years old, with a heavy build and short black hair.

The male passenger is described as being Middle Eastern, around 30 to 35 years old, with short black hair, according to police.

The woman in the back seat was described by police as being Middle Eastern and about 50 years old.

Police are asking anyone with information to contact them at 1-888-579-1520, ext. 2535, or Crime Stoppers anonymously at 1-800-222-8477.