OAKLAND — Eight men were wounded by gunfire Friday night and Saturday morning in four seemingly unrelated shootings between downtown and North Oakland, leaving at least two victims in critical condition, authorities said.

Three men were wounded in the latest shooting, which occurred about 3:57 a.m. Saturday in the 300 block of 15th Street between Webster and Franklin streets downtown. One victim was 24, another 25 and no age was given for the third man.

Police said the men were outside when someone began shooting at them. They were taken to a hospital in stable condition. Police don’t have a motive yet for the shooting and have not made any arrests.

About 2:30 a.m. Saturday two 19-year-old Antioch men were shot in the area of 51st Street and Shattuck Avenue in North Oakland. They were driven by other people to a nearby hospital but were later transferred to different hospital. One of the men was initially listed in critical condition.

Police are trying to determine why the victims were in Oakland and if they were in a vehicle when they were shot. No motive has been determined and no arrests made.

Just after 1 a.m. Saturday two men were injured by gunfire in the 500 block of 17th Street in the Uptown area. The victims, 23 and 26, told police they were walking when they heard gunshots and saw they had been wounded. They were taken to a hospital but their conditions were not released.

Police don’t have a motive for the shooting but said at this time it does not appear the men were the intended targets and were possibly hit by stray bullets from another shooting in the area where no injuries were reported. No arrests have been made.

Another Uptown shooting happened about 10:51 p.m. Friday in the 2000 block of Telegraph Avenue when a 28-year-old man got into an argument with another man and was shot, police said.

The gunman fled before police arrived. The victim was taken to a hospital where he was initially reported to be in critical condition. Police have not said what the men were arguing about and no arrests have been made.

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Pittsburg: Suspect identified in Sept. 17 homicide Police and Crime Stoppers of Oakland are offering up to $15,000 in reward money in the 15th Street shooting, up to $10,000 in the 17th Street and North Oakland shootings and up to $5,000 in the Telegraph Avenue shooting for information leading to the arrest of the suspects. Anyone with information may call police at 510-238-3426 or Crime Stoppers at 510-777-8572.

Check back for updates.