Police say three people, including a 16-year-old, died after they were shot on Chicago's South Side.
The trio, which also included a 23-year-old and a 27-year-old, were gunned down on Wednesday night in a courtyard in the city's South Shore neighborhood after several gunmen opened fire.
The 23-year-old died at the scene while the 27-year-old and 16-year-old died later at hospitals.
Police say no one is in custody.
A fourth man was killed in a separate shooting later in the evening.