A second pre-trial suit filed by claimants to the superyacht Equanimity will be heard in Jakarta on April 9, according to a report.

Indonesian online portal Merdeka.com quoted South Jakarta court official Ahmad Guntur as saying that the pre-trial hearing, scheduled to be heard yesterday, has been postponed to next Monday.

"The (first) pre-trial suit was supposed to be heard on April 2 but the application was withdrawn," said Guntur.

"Claimants then filed a second application, which would be heard on April 9," he said.

According to the report, Guntur said lawyers for the claimants had included more documents to support their legal challenge against the Economic and Special Crimes Unit, which falls under the Criminal Research Department of Indonesia's central police.

It is understood that a pre-trial suit could be filed in Indonesian courts to challenge procedures surrounding arrests, detention or seizure of assets by the authorities in charge.

In this case, Guntur said, the claimants have challenged the seizure of the vessel by Indonesian police on behalf of US authorities as invalid, as well as its subsequent plan to hand over the vessel to the US.

According to court filings made by the US Department of Justice on March 26, the claimants' move was part of other efforts to prevent the Equanimity from being seized by US authorities.

Lawyers representing the claimants have also questioned if the US Federal Bureau of Investigation had properly executed the warrant to "arrest" the vessel on Feb 28.

The US$250 million superyacht linked to businessperson Low Taek Jho is among several assets being sought by the DOJ for allegedly being acquired using funds it says were misappropriated from Malaysian state investment fund 1MDB.

Jho Low has denied any wrongdoing while 1MDB insists that all its money is accounted for.

In particular, Jho Low claimed that the allegations against him are politically motivated and the seizure perpetuates DOJ’s “pattern of global overreach”.