Four people were shot and wounded around 4:30 p.m. Saturday by someone who drove up as they stood outside at East 79th Street and South Escanaba Avenue in South Shore, according to the police.

The police said a 20-year-old man was taken in serious condition to Northwestern Memorial Hospital with a gunshot wound to the right leg, a 19-year-old was taken there after being shot in the groin, a 31-year-old man who was shot in the left foot was being treated at South Shore Hospital and a fourth person, who suffered a graze wound, declined medical attention.