There is currently no evidence that money had been misappropriated from 1MDB, said attorney-general Mohamed Apandi Ali.
"The attorney-general emphasised that to date, there has been no evidence from any investigation conducted by any law enforcement agencies in various jurisdictions which shows that money has been misappropriated from 1MDB," Apandi said in a statement today.
It is not clear whether Apandi's remarks were referring to local or international law enforcement.
The top prosecutor also said there had been "no criminal charges preferred against any individuals for the offence of misappropriation of funds from 1MDB".
He was referring to the US Department of Justice's (DOJ) crackdown on alleged misappropriation of 1MDB funds, through the use of civil suits.
The DOJ claims that more than US$3.5 billion had been diverted from 1MDB over the course of several years, to the benefit of several individuals including an unnamed high ranking public servant dubbed 'Malaysian Official 1'
Also implicated in the DOJ's suits are Prime Minister Najib Abdul Razak's stepson Riza Aziz, and Penang-born tycoon Jho Low.
Apandi said that he has yet to get any request from the DOJ to obtain evidence or information, but would be open to such cooperation.
He also said that he would not hesitate to initiate criminal proceedings if there was sufficient evidence to do so.
Currently he said that Malaysia's own investigations into the case were still ongoing and that it would be inappropriate to divulge any details that might derail the process.
Inspector-general of police Khalid Abu Bakar said police have already interviewed 25 people.
He said the first phase of the investigation – scrutinising documents and recording statements from witnesses in the country – was nearly over.
He said that the police would soon start the second phase – sending investigators overseas to obtain documents and record the testimonies of witnesses who are abroad.