Chicago police said the four men were unable to provide information after being wounded in a mass shooting on the Near West Side Saturday night.

A woman was killed and five other people were hurt when gunfire erupted early Sunday at a large outdoor gathering on Chicago's West Side – one of three separate shootings to occur in the same neighborhood in fewer than three hours, according to police.

Five people were shot outside a senior living building on the city's South Side on Monday afternoon, Chicago police said.