KUALA LUMPUR (BLOOMBERG) - A Malaysian court has rejected former premier Najib Razak's bid to drop charges related to an audit report of troubled state fund 1MDB after prosecutors made amendments to the accusations.

The bid is "premature" and should be considered only at the end of the trial's prosecution stage, the judge said on Friday (Aug 14).

This means Najib may make another bid to dismiss the charges.

Prosecutors had changed the wording in Najib's charge sheet to say that he, along with former 1MDB president Arul Kanda, was involved in tampering with an audit report "finalised" by the Auditor-General before it was "finalised again" and presented to the Parliament's Public Accounts Committee.

Najib responded by applying to strike out the allegations, with his lawyer arguing that a finalised report by definition cannot be revised.

The case is one of many that Najib faces for his alleged role in 1Malaysia Development Berhad, the Malaysian state fund that is at the centre of global investigations into corruption and money laundering.

He has been sentenced to 12 years' imprisonment and a RM210 million (S$68.6 million) fine in an earlier case involving a former unit of 1MDB.