MINNEAPOLIS (AP) — .

In a joint statement Friday night, they backed up state and local investigators who have rebuffed protesters demands for the release of videos of the shooting of 24-year-old Jamar Clark on Sunday.

The statement came from U.S. Attorney Andy Luger; the assistant attorney general for civil rights, Vanita Gupta; and the special agent in charge of the FBI's Minneapolis office, Richard Thornton.

They say release of any information, including any video, would be "extremely detrimental" to the independent investigation that the Justice Department and FBI are conducting into whether Clark's death violated any federal laws.

The federal investigation was also one of the protesters' demands.

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Hundreds of people gathered outside a Minneapolis police precinct Friday night to remember a black man who was fatally shot by an officer.

The vigil was peaceful on Friday evening. Several speakers are calling for unity and justice in the wake of Sunday's shooting of 24-year-old Jamar Clark.

Clark was shot Sunday after authorities say he struggled with an officer.