The government must appoint new auditors to re-audit the 1MDB accounts that have been disavowed by Deloitte Malaysia, Petaling Jaya Utara MP Tony Pua said today.

The DAP publicity chief said this will help uncover the truth about the 1MDB scandal.

However, if there is no re-audit of the 1MDB accounts for the financial year ending March 2013, Pua said, this would confirm there are efforts to cover up the scandal.

"It only confirms what all Malaysians today suspect to be true - that Prime Minister Najib Abdul Razak and the BN government are adamant on covering up the single largest act of corruption, misappropriation and abuse of power in the history of Malaysia," Pua told a press conference at the Parliament lobby.

Deloitte has said that its audit of 1MDB accounts in 2013 and 2014 should no longer be relied on, following the US Department of Justice civil suits that claim more than US$3.5 billion had been siphoned out of the state investment firm.

Pua said he had asked Najib about a re-audit of the accounts on Oct 18.

However, in a written parliamentary reply that day, the Finance Ministry said books audited by Deloitte were "true and transparent" according to 1MDB's affairs at the time.

But Pua said what 1MDB's board of directors believed to be true was irrelevant as the accounts had been disavowed.

Deloitte had announced its intention to quit as 1MDB's auditor earlier this year, but 1MDB has yet to replace the firm.

Prior to Deloitte, 1MDB's accounts from 2010 to 2012 were audited by KPMG, but the firm's services were terminated in December 2013.

According to the Public Accounts Committee report on 1MDB, KPMG was sacked after it refused to sign off on the accounts, which had no details of investments worth US$2.32 billion.

KPMG signed off on the accounts after Abu Dhabi's International Petroleum Investment Compny guaranteed an investment, the PAC report said.

The Wall Street Journal reported that another audit firm, Ernst & Young, was sacked in 2010 for raising similar questions.