WASHINGTON (AP) — Singer Chris Brown's trial on an assault charge was put on hold for months Wednesday after prosecutors declined to grant immunity to his bodyguard, who would be a key witness in the case.

Brown will remain in custody for the near future after a Los Angeles judge denied a request by the Grammy-winning singer's attorney to release him from custody while he awaits trial.

Brown's trial had been set to start in Washington on Wednesday, and Brown's bodyguard, Christopher Hollosy, had been expected to testify and say that he, not Brown, hit a man outside a hotel in the nation's capital in October. Hollosy was tried separately and convicted Monday of assault, but he plans to appeal.

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