A shooting in Oakland's Jack London Square overnight Monday left two people dead and four others injured.
The group was inside Sweet Jimmie's on Broadway around 12:30 a.m.
Sources within the Oakland police department told NBC Bay Area that four men tried to rob a group of people who were outside the bar. When some of them tried to fight back one of the robbers pulled out an assault rifle and opened fire.
Police said two men died at the scene. Two other men sustained life threatening injuries and two women suffered non life threatening injuries.
Police only had a vague description of four young male suspects who drove off in a four-door, white Dodge Avenger.
The shooting followed a concert by rapper Lil Wayne at the Oracle Arena. Wayne held an after-party at Kimball's nightclub, which was just around the corner from Sweet Jimmie's. There is speculation that the robbers were in the area perhaps to rob people at the after party.
The shootings caught the attention of Oakland Mayor Jean Quan who said, "I'm particularly disturbed by the use of firearms last night -- a growing concern in the Bay Area and in major cities around the country."
Oakland police said they are offering a $40,000 reward for information that leads to an arrest in the case.
According to Bay City News, Sweet Jimmie's has a long history in Oakland. It is an off shoot of another Sweet Jimmie's restaurant that was opened by "Sweet Jimmie" Ward in 1987 on 18th St. Ward died last year.