Malaysian authorities once again called in former prime minister Najib Razak and his wife, Rosmah Mansor, for questioning on Wednesday in an investigation into alleged graft linked to state fund 1Malaysia Development Berhad (1MDB).
She will be brought to court on Thursday to face charges related to the anti-money laundering law.
The building houses the Royal Malaysia Police (PDRM) Anti-Money Laundering Unit.
In Rosmah's last appearance a week ago, she was questioned for 13 hours.
She reportedly arrived at the MACC headquarters at 10.40am this morning, and this marks her third (and possibly final) visit.
He has consistently denied wrongdoing and has pleaded not guilty to all the charges.
Rosmah, wearing a light green dress with matching headscarf, was met by her lawyers and escorted by anti-corruption officers into the agency's building.
Coincidentally, Najib will also appear in court Thursday for the management of his own corruption case.
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At a press conference after Rosmah's arrest, Kumaraendran said presently, he was not aware how many charges his client will face.
Writing on Instagram, their daughter Nooryana Najwa Najib criticised the Government for going after her family.
"It is Mahathir's attempt to show the world that this is "the nastiest couple" in Malaysia - both robbers and criminals", he told reporters outside of Malaysian Anti-Corruption Commission (MACC) headquarters here today.
Nooryana posted a picture of a young Rosmah holding herself as a toddler, and vowed "we will persevere".
Mr Najib, 64, faced questioning on Wednesday by the anti-money laundering and anti-terror financing division of Malaysia's police over a money laundering inquiry, media said.
Corruption accusations have dogged Mr Najib for years, and came to a head in 2015, when the Wall Street Journal reported that almost US$700 million in 1MDB funds was diverted to his personal bank account.
In a statement, the MACC said Rosmah's arrest follows the consent for prosecution by the Attorney-General's Chambers (AGC).
New Prime Minister Mahathir Mohamad reopened investigations into 1MDB that were suppressed under Najib's rule.