MANILA - Senator Antonio Trillanes IV on Sunday said he is set to file a resolution calling on the Senate to investigate the alleged ill-gotten wealth of President Rodrigo Duterte and his daughter Davao City Mayor Sara Duterte-Carpio.

Trillanes said the resolution that he will file Monday seeks to look into bank documents under the name of the Dutertes, which allegedly show their undisclosed transactions exceeding P500,000.

The transactions, he said, "may have violated the Anti-Money Laundering Act (AMLA)."

"President Duterte must address this issue squarely once and for all and stop fooling the Filipino people. If he has nothing to hide, he should bare it all and sign the waiver," the opposition senator said in a statement.

"On the contrary, he has been dilly-dallying in his statements, and instead has been bluffing the people by publicly ordering AMLC to investigate his alleged bank accounts, although we all know that AMLC would not do it unless he signs a waiver on bank secrecy," he added.

Trillanes first accused Duterte of keeping hidden wealth during the 2016 elections. He claimed that the President, then mayor of Davao City, had failed to declare P211 million in 17 accounts.

• Trillanes: Duterte a 'fraud,' didn't declare P211M in SALN

The Chief Executive and Duterte-Carpio have repeatedly rejected this allegation.

Trillanes, however, cast doubt on their denial. He pointed out that Overall Deputy Ombudsman Melchor Carandang was recently suspended for supposedly releasing Duterte's bank documents from AMLC.

"What is there to leak when they deny such documents being released by AMLC?" he said.

• Palace obstructing justice by suspending Deputy Ombudsman, says Trillanes

In his proposed resolution, Trillanes also noted a VERA Files report that the Dutertes "failed to fully disclose in their Statements of Assets, Liabilities and Net Worth their joint deposits and investments, which exceeded Php100 million, under the Bank of the Philippine Islands (BPI)."

Trillanes, citing the report, said the transactions included "a P48.17 million placement in 2006 that grew to P55.13 million by 2013; a P40.55 million investment in 2009 that stood at P41.72 million in 2013; about $220,000, roughly P10 million, from 2006 to 2012; the purchase of P80 million in insurance policies in 2014; and a P16.85 million investment which begun in 2014."

"With this resolution, I am accepting President Duterte's challenge to investigate his alleged ill-gotten wealth to once and for all reveal the truth on this issue. The public wants to know the truth and it's in the hands of the Senate to uncover it," Trillanes said.

Presidential Spokesperson Harry Roque has dismissed the VERA Files report as “hearsay” and “kuwentong kutsero.”

• Palace says report on Duterte and Sara’s undisclosed deposits ‘hearsay’