Key events in the scandal involving Malaysian Prime Minister Najib Razak:

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July 3 — The Wall Street Journal and the UK-based Sarawak Report website say an investigation into 1MDB traced nearly $700 million to Prime Minister Najib Razak's personal bank accounts from entities linked to the fund. The Wall Street Journal reports there were five deposits into Najib's account, including the two largest transactions of $620 million and $61 million in March 2013 ahead of general elections. 1MDB says it has never given any money to Najib. His office slams the allegations as a political sabotage to "remove a democratically-elected prime minister."

July 4 — Attorney General Abdul Gani Patail confirms he received documents from an official investigation making the link between Najib and 1MDB. The documents pave the way for possible criminal charges. The special task force raids offices of three companies linked to 1MDB that were allegedly involved in the fund transfer.

July 7 — The task force says it has frozen six bank accounts but did not specify holders or the banks involved. The team also seizes documents related to 17 accounts from two banks.

July 8 — The task force raids 1MDB's office.

July 19 — Authorities block access in Malaysia to the Sarawak Report website.

July 22 — Singapore authorities say they have frozen two bank accounts in connection with the investigation.

July 24 — The Edge media group says the publishing permits for its business weekly and its daily newspaper are suspended for three months. This came after it ran extensive reports alleging Malaysian businessman Low Taek Jho and PetroSaudi International had cheated Malaysia of $1.83 billion in cash through an aborted joint venture with 1MDB in 2009. Low is close to Najib's family.

July 26 — Deputy Prime Minister Muhyiddin Yassin, speaking at a party event, repeats his call on Najib to explain the 1MDB saga and the money in his accounts.

July 28 — The government terminates Attorney General Abdul Gani's services, citing health reasons, three months short of his retirement. Najib fires Muhyiddin and four other ministers in a surprise cabinet reshuffle. Najib later says he prefers loyalty to smart people. A parliamentary probe into 1IMDB is stalled after four lawmakers are promoted in the reshuffle.

July 29 — Electoral reform group Bersih calls for street rallies in Kuala Lumpur and two other cities to demand Najib's resignation.

July 30 — Sarawak Report claimed that Gani was fired for preparing charges against Najib.

July 31 — The new Attorney General Mohamed Apandi Ali denies the report on charges against Najib and repeats the government's line that it was part of a plot to topple Najib.

Aug 3 — Malaysia's Anti-Corruption Commission says the money in Najib's accounts came from donations, but didn't name the donors.

Aug 4 — Police issue arrest warrant for Clare Rewcastle Brown, who runs Sarawak Report from London, for activities detrimental to parliamentary democracy.

Aug 5 — The anti-graft commission says it will call Najib to explain the donation, which came from the Middle East. It also says the new attorney-general has disbanded the special task force probing 1MDB.

Aug 12 — The Malaysian ringgit plunges to below 4 to the dollar, the lowest level in 17 years.

Aug 13 — The central bank says it has completed its probe into 1MDB and submitted its findings to the attorney-general this week with a recommendation for "appropriate enforcement action."