KEY POINTS
  • Imane Fadi died March 1 at a Milan hospital after exhibiting "symptoms of poisoning."
  • In 2012, Fadi had told reporters that she feared for her safety after telling prosecutors she was offered money in exchange for her silence.
  • Unnamed officials said tests on the model indicated a "mix of radioactive substances."
FILE - In this Monday, Oct. 3, 2011 file photo, Imane Fadil smiles as she leaves the court in Milan, Italy. Italy prosecutors have opened an investigation into the death of a Moroccan model who testified in one of the inquiries linked to ex-Premier Silvio Berlusconi's "bunga bunga" parties.

ROME (AP) — Italy prosecutors have opened an investigation into the death of a Moroccan model who testified in one of the inquiries linked to ex-Premier Silvio Berlusconi's "bunga bunga" parties.

Imane Fadil, 34, died March 1 at a Milan hospital, where she had been treated since Jan. 29 exhibiting "symptoms of poisoning," Milan prosecutor Francesco Greco said, according to Italian news agency ANSA.