According to reports, the transactions were made on July 18 when money from the accounts of three passengers was transferred to the account of a fourth passenger before it was removed.
"We are investigating the case as unauthorised access with intent to commit an offence," Izany said, according to the Mirror.
"We are getting CCTV footage from the bank to identify the suspects involved."
A billboard in support of missing Malaysia Airlines flight MH370. Photo / AP
A source told the New Straits Times: "We believe the suspect withdrew the money through the fourth victim's account via several automated teller machines (ATMs) in the Klang Valley."
Efforts to locate Flight MH370 have spanned more than five months, making it one of the most expensive searches for a plane in aviation history.
The Joint Agency Coordination Centre claims the rescue operation is making "good progress".
Teams are still scanned a 60,000-square-kilometre area in the Indian Ocean, with a deep-water search planned for September.
Malaysian Airlines planes parked at the tarmac of Kuala Lumpur International Airport. Photo / AP
Flight 370 disappeared mysteriously in March with 239 people on board after diverging from its planned route from Kuala Lumpur to Beijing.
The airline was widely criticised for its handling of the crisis.
In a desperate bid to save face following two major disasters within months, bosses are now considering rebranding the airline.
Officials said they are looking at a number of options to restructure the business which could include changing its name.
Among the other changes the Malaysian flag carrier is considering are new routes and expanding out-sourcing to increase profitability.
It follows the death of 298 passengers after flight MH17 was shot down over Ukraine on July 17 and the disappearance of flight MH370 on March 8, which was carrying 239 passengers and crew.
The Malaysian flag carrier will also seek new investors to rebuild its business.
Next trending article: Student dragged beneath truck as he ran to catch bus
- Daily Mail