The special task force said they have frozen six accounts and has also obtained documents on 17 accounts in two banks to assist with investigations.
"Several documents pertaining to non-compliance of Bank Negara Malaysia's rules and procedures were also seized," it said in a statement by Attorney-General Abdul Gani Patail, Bank Negara (Central Bank) Malaysia Governor Zeti Akhtar Aziz, Inspector-General Police Khalid Abu Bakar and Anti-Corruption Commission chief commissioner Abu Kassim Mohamed.
Last Friday, Wall Street Journal and Sarawak Report published reports alleging that nearly USD 700 million (RM2.65 billion) of 1 Malaysia Development Bhd (1MDB) fund was transferred into Najib's personal account.
The WSJ has stood by its report and today published on its website nine documents detailing how almost USD 700 million 1 MDB funds allegedly ended up in Najib's personal bank accounts, Star newspaper reported here.
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The international business daily published the "Government Documents From Probe of Najib Razak" on their website saying the documents came from a "Malaysian government investigation". The documents showed alleged bank transfers from various companies to Najib's personal accounts on March 2013, December 2014 and February 2015.
Meanwhile, human rights activist Ambiga Sreenivasan has called for snap polls following allegations linking Najib to the financial scandal involving 1 MDB.
"The prime minister has to go on leave. Opposition leaders should go and see him and ask him to do so. There are ongoing investigations and you will never get an impartial probe if he is still the prime minister," she was quoted as saying by Malaysian Insider.
"There must be a promise of fresh elections to be called within one year," she said.
This was echoed by opposition leader and Parti Keadilan Rakyat (PKR) president Wan Azizah Wan Ismail, who asked Najib, who is also finance minister, to do the "gentlemanly" thing and go on leave.
Investigative agencies must keep the public informed of their ongoing investigation into 1 MDB issue, said Anti corruption NGO Bersih 2.0 chief Maria Chin Abdullah.
"We hope the investigations are made public to allow for scrutiny," she said.