Man, 40, fatally shot in the chest on South Side

Chicago police are investigating a deadly shooting that happened on Chicago's South Side Sunday morning. 

A 40-year-old man was standing in the street in the 9000 block of South Emerald Avenue at about 12:40 a.m. when he was shot. 

Police say a male suspect approached the victim on foot. 

He was transported to Christ Medical Center in serious condition with a gunshot wound to the chest. 

There is no one in custody. Area Two detectives are investigating in Gresham.