After it was reported that Mary Kate Olsen asked immunity from prosecution before she will cooperate with a federal investigation regarding Heath Ledger’s death from accidental overdose, now her lawyer says that she does not know anything about where Ledger got the drugs.

Mary Kate Olsen’s lawyer made a statement Monday, emphasizing that his client can’t give “relevant information” to the case.

“Despite tabloid speculation, Mary-Kate Olsen had nothing whatsoever to do with the drugs found in Heath Ledger's home or his body, and she does not know where he obtained them,” said the statement from attorney Michael C. Miller, according to People magazine.

This statement came after reports that said Mary Kate Olsen wanted immunity. Miller also highlighted that Mary Kate Olsen gave all the information she had about Heath Ledger’s death.

“Regarding the government's investigation, at Ms. Olsen's request, we have provided the government with relevant information including facts in the chronology of events surrounding Mr. Ledger's death and the fact that Ms. Olsen does not know the source of the drugs Mr. Ledger consumed,” said the statement.

The statement released by attorney Michael C. Miller concluded: “We don't know the source of the information being quoted in the media regarding the government's inquiry, but these descriptions are incomplete and inaccurate.”

Drug Enforcement Administration agents are trying to find out where Heath Ledger got the prescription drugs which led to his death on January 22 in New York. Mary Kate Olsen was linked to Heath Ledger’s case when the masseuse who discovered Ledger’s body Diana Wolozin called Mary Kate Olsen before dialing 911, reported E! Online. Also, it was said that the Mary Kate Olsen and Heath Ledger dated some time before the tragedy happened.