The Milwaukee Police Department is investigating a non-fatal shooting that happened around 5:30 p.m. on December 22 in the 5700 block of W. Oklahoma Avenue. The preliminary investigation reveals that a 50-year-old male victim was being robbed when the assailant shot him at least once. The victim was treated on scene by the Milwaukee Fire Department. He was conveyed to a local hospital where he is being treated and expected to survive his gunshot injuries. MPD is searching for the suspect in the incident.