The Department of Special Investigation (DSI) is seeking more evidence from the Department of Cooperative Auditing in an embezzlement case involving Klongchan Credit Union Cooperative.
Kittikong Khanachan, the director of DSI's money laundering and narcotics suppression centre, said the inquiry into alleged embezzlement and fraud worth 12 billion baht is making progress.
He said Department of Cooperative Auditing chief Vijak Arkubkriya had agreed to send his staff to the DSI this week to give statements and hand over documents.
Mr Kittikong also urged investors in Klongchan Credit Union Cooperative not to panic.
He said that the DSI inquiry is into the actions of six individuals, not the whole cooperative.
Former cooperative chairman Supachai Srisupa-aksorn and five others have been accused of swindling about 12 billion baht from the cooperative.
The Anti-Money Laundering Office (Amlo) has ordered a freeze on assets held by the suspects.
An earlier Amlo order froze 319 plots of land, eight vehicles and nine bank accounts belonging to the same group of suspects.
The total value of the frozen assets, including land plots in Bangkok and Nakhon Ratchasima, amounts to 2 billion baht.
Amlo chief Seehanat Prayoonrat said yesterday the agency is trying to track down other possible hidden assets of the suspects.
He said the agency will also look into business transactions of the five to six people under suspicion to see if they are involved in embezzlement.
Mr Seehanat said the agency has found no irregular activities that may indicate an attempt to move the assets offshore.