Eighteen people were shot and four killed in a drive-by shooting outside a restaurant in Chicago’s River North neighborhood late Wednesday, authorities confirmed Thursday. The shooting occurred following an album release party at Artis Restaurant and Lounge for rapper Mello Buckzz.

Four people were killed and 14 others wounded in a "deplorable and cowardly" mass shooting in Chicago on Wednesday night, according to the police superintendent.

The upbeat mood in a busy Chicago neighborhood known for its restaurants and nightlife quickly turned into horror late Wednesday as shots were fired at a crowd from a fast-moving vehicle, killing four people.