Britney Spears' associates being investigated by the LAPD

Britney Spears' associates are being investigated by L.A. cops.

Police are looking into allegations that the star was drugged by people in her inner circle, according to U.S. reports.

The Los Angeles Police Department released a statement last night saying they they are investigating possible wrongdoing by people close to the troubled star.

A police spokesman said: "The issues regarding Britney Spears are being considered by the department to determine if laws have been violated.

"Particular suspects have not yet been fully identified nor has a formal investigation into open charges officially commenced.

"At this time we don't know whether or not a formal investigation will be initiated."

The investigation is reportedly linked to comments made by Britney's mother Lynne Spears in court documents for a temporary restraining order against the singer's former manager, Sam Lutfi.

In her affidavit accompanying the request for the order Lynne alleged point-blank: "Mr. Lutfi drugged Britney."

She went on to claim that Lutfi even boasted to her directly that he ground up pills, among them anti-psychotics Risperdal and Seroquel, and put them in Britney's food.