MANILA, Philippines - The National Bureau of Investigation (NBI) has put an official of Aman Futures Philippines under protective custody.

Justice Secretary Leila de Lima said they are now studying the possibility of making Aman Futures financial manager Maria Donna Coyme a state witness.

Coyme already vowed cooperation with the government probe into the company. In her affidavit, she said she processed about P500 million in investments.

The firm allegedly swindled over P12 billion pesos from investors in Visayas and Mindanao.