Hamilton Police are looking for four suspects after a man was robbed and sprayed in the face early Tuesday moments after using a downtown ATM.

Police were called to the TD Canada Trust at 194 James Street South around 3:30 a.m. for reports of a robbery.

The victim, a 26-year-old man, told police he had just withdrawn money from the bank machine when he was approached by two women and two men who guided him to the back area of the building.

Police believe the suspects then showed the man a handgun and sprayed him in the face with an unknown substance before making off with an undisclosed amount of cash.

Police have not yet released suspect descriptions as they are waiting to speak more to the victim who was being treated in hospital for non-life threatening injuries.

The area has since reopened. Police continue to investigate.