Four men have been arrested after police say a drug deal turned into a robbery Wednesday night in Orangeville.

It happened in the area of Mill Street and Little York Street.

Orangeville Police say a 17-year-old was approached by four men and told to empty his pockets. When he refused, he was thrown to the ground then punched and kicked by the men causing a cut to his head and bruises, police say.

Upon further investigation, police say the teen was selling the four men marijuana when the robbery and assault happened.

The teen was able to provide a description of the men and police arrested three of them a short time later. The fourth man was arrested Thursday afternoon.

A 20-year-old and three 19-year-old men are each charged with robbery and assault causing bodily harm.