None of the injuries from either shooting after Friday night's game were believed to be life-threatening, the local US media said.
The first shooting, involving three victims, occurred adjacent to the Deer District — an entertainment district with numerous bars and restaurants where large crowds often assemble to watch major sporting events, NPR reported.
The Milwaukee Fire Department said authorities took two people to a hospital, a 30-year-old man and a 16-year-old girl, and a third person drove to a hospital. Police said a 29-year-old man was in custody.
Seventeen more people were injured in a second shooting about two hours later, which happened a few blocks away. Ten people were taken into custody and nine guns were recovered, WTMJ-TV reported.
There was no immediate indication whether the two shootings were related or involved fans who were watching the game.
Witnesses told WTMJ-TV that they saw a fight outside a bar following the basketball game.
MA/PR