OAKLAND -- Four people were shot within four hours late Friday and early Saturday in East Oakland, including a man at a sideshow and a teen shot after he was possibly mistaken as a gangmember, police said.

None of the wounds were life threatening and police were trying to determine if any of the shootings were related.

The most recent shooting happened at about 1:48 a.m. Saturday when an Oakland man was shot during a sideshow in a hardware store parking lot in the 4000 block of Alameda Avenue. The 27-year-old was standing outside his car watching the spectacle -- which often involves motorists speeding through city streets and spinning "doughnuts" at major intersections -- when he was shot in the stomach. He was able to drive himself to a hospital on his own and was in stable condition.

New police Chief Sean Whent made sideshow suppression a priority earlier this month after three people were shot June 1 at 106th Avenue and MacArthur Boulevard during a large sideshow. A 25-year-old Walnut Creek woman was critically injured in that incident.

At a press conference following the shooting at the beginning of the month, Whent announced he would deploy crime reduction teams to patrol sideshow hot spots and reinvigorate a community partnership that had previously suppressed the events. Before the June 1 shooting, Oakland had not seen sideshow-related gunfire in two years.

Police have said the early-morning car gatherings peak during the summer.

An hour before Saturday's sideshow shooting, a 27-year-old Oakland man was shot near Foothill Boulevard and Trask Street. The victim was taken to a hospital in stable condition.

At 11:20 p.m. Friday, someone in a vehicle in the 9600 block of Edes Avenue opened fire on another vehicle, wounding a 16-year-old Oakland boy who was riding with a relative. The victim was listed in serious but stable condition at a hospital. Police believe the boy and his relative were possibly mistakenly targeted by gang members.

The rash of shootings began at 10:40 p.m. Friday when a 28-year-old Oakland man was shot in the 2000 block of 82nd Avenue by a gunman who fled on foot. The victim was listed in stable condition at a hospital.

Police and Crime Stoppers of Oakland are offering up to $5,000 in reward money in each shooting for information leading to the arrest of the suspects. Anyone with information may call police at 510-238-3821 or a tip line at 510-773-2805 or Crime Stoppers at 510-777-8572.