KUALA LUMPUR, Sept. 20 (Xinhua) -- Former Malaysian Prime Minister Najib Razak could face more than 20 new charges in connection to the state investment fund 1MDB, police said Thursday.

Najib was arrested again by the Malaysian Anti-corruption Commission (MACC) on Wednesday related to the 1MDB case before being transferred to the police for questioning on Thursday. MACC said Najib would appear in court to face charges later Thursday.

Police said a statement that "as many as 21 charges were ready related to the 681 million U.S. dollars" that was deposited in Najib's personal account during his time as prime minister, including charges of receiving, using, and moving illegal money to other entities.

The 681 million U.S. dollar, or 2.6 billion ringgit, was allegedly misappropriated funds from 1MDB. Najib has denied any wrongdoing, insisting that the money was legal political donations from the Middle East.

Since electoral defeat in May, Najib has faced with charges of criminal breach of trust, abuse of power and money laundering, all of which linked to a 42-million-ringgit (10.3-million-U.S. dollar) deposit transferred into his personal bank account by SRC International, a former unit of 1MDB.

Najib has pleaded not guilty to the charges.