Another suggests that those benefit discs were probably burnt with zipped files originally in .mdb format - Microsoft's Access database.

Investors raised the question of the state-owned 1MDB's debt during the meetings.

Mahathir has said there was sufficient evidence for further investigations into 1MDB.

August - The Justice Department says conducting a criminal probe into 1MDB.

That upsets Malaysia's efforts to contain the financial fallout from scandal-hit 1MDB.

At least six countries are conducting investigations into the affairs of 1MDB.

He revealed he had urged Mr Najib to step down from 1MDB.

Last month, Swiss authorities said they had frozen 1MDB funds in Swiss banks.

There is also suspicion of mismanagement at state investment firm 1MDB.

MDB Capital Group LLC was the lead underwriter for the offering.

But capital outflows accelerated in July as the political storm over 1MDB worsened.

He said on Monday that the rationalisation plan for 1MDB was on track.

There was no immediate response from 1MDB when asked about Leissner.

We encourage the MDBs to contribute fully to the achievement of this objective.

He also replaced the Attorney General who was leading an investigation into 1MDB.

Najib also acts as finance minister in Malaysia and chairs 1MDB's advisory board.