MILWAUKEE (CBS 58) -- Milwaukee County Sheriff's Office deputies are investigating three shootings at Dineen Park on Milwaukee's north side. 

It happened around 4:30 p.m. on Sunday, when authorities found a 19-year-old man suffering from a gunshot wound. He died from his injuries at the park.

Later on, another 19-year-old man deputies believe to be involved in the shooting, walked into a hospital for non-life-threatening injuries.

Subsequently, in another part of Milwaukee, a 26-year-old man, also believed to have been injured in the Dineen Park incident, was discovered deceased in a vehicle, according to MCSO. They did not say where that location is. 

Officials say the investigation is ongoing.