MILWAUKEE (CBS 58) -- Milwaukee police are investigating three separate fatal shootings that happened within about 15 minutes apart from each other on Saturday night, Oct. 14.

The first one happened just before 10:00 p.m. near Teutonia and Locust. According to police, a 52-year-old was fatally shot and pronounced dead at the scene after what appears to be an argument and a fight. The Milwaukee County Medical Examiner's Office identified the victim as 52-year-old Arthur Clements. Police are looking for a known suspect.

The second shooting happened just after 10:00 p.m. near 36th and Clarke. Police say a 45-year-old was fatally shot and pronounced dead at the scene after what appears to be an argument. The Milwaukee County Medical Examiner's Office identified the victim as 45-year-old Ulyssis Griggs. Police are still investigating the cause and looking for an unknown suspect.

The third shooting happened around 10:14 p.m. near Center and Vel R. Phillips. Police report a 20-year-old was shot several times and taken to a hospital where he was pronounced dead. The ME's office identified the victim as Brandon Long. The investigation to what lead up to the shooting is ongoing but appears to be an argument and fight. Police are looking for an unknown suspect.

Anyone with any information on any of these shootings is asked to call Milwaukee police at (414) 935-7360 or to remain anonymous, contact Crime Stoppers at (414) 224-Tips or P3 Tips.