A Malaysian court ruled on Wednesday that jailed former prime minister Najib Razak will have to defend himself against more abuse of power and money laundering charges in another trial over the multi-billion dollar scandal at state fund 1MDB.

Najib faces four charges of abuse of power and 21 charges of money laundering for allegedly receiving 2.3 billion ringgit ($526 million) from 1Malaysia Development Berhad (1MDB). He has pleaded not guilty.

If convicted, Najib faces up to 20 years in prison and fines up to five times the amount of funds involved in the offense.