A former bank employee, Songklod Sriprasong, and other accomplices were apprehended to face charges of forgery and using fake KMITL documents, and colluding to embezzle Bt1.6 billion over a two-year period.
In its statement, SCB said that Songklod resigned in September 2013.
"The case is under police investigation. We're ready to give full cooperation," it said.