A crowd was said to be leaving Artis Lounge on Chicago Avenue following an album release party for rapper Mello Buckzz when three shooters opened fire.

Cook County Crime Stoppers announced Monday that they are offering a cash reward of $10,000 for information leading to arrests in a mass shooting that left four people dead and 14 wounded outside the Artis Restaurant and Lounge in Chicago's River North neighborhood last week.

A drive-by mass shooting killed four people and wounded 14 more late Wednesday night in River North, Chicago police said.