Regina police have arrested and charged a fourth suspect in connection with a robbery that occurred in September. Officers responded to the 1300 block of Saskatchewan Drive for a report of a robbery on Sept. 16 around 11:35 p.m. Police say the victim had been physically assaulted, threatened with a gun and robbed of their belongings. The victim was treated by EMS for their injuries. Three men were previously arrested and charged in connection with the robbery. All three made their court appearance on Sept. 17. Following further investigation, a fourth person, a 35-year-old man, was located and arrested on Oct. 22. He has been charged with robbery and will appear in Regina Provincial Court at a later date, police say.