Country's anti-graft watchdog has now summoned AB Bank's newly-appointed chairman and one of the bank's directors for, what it said, laundering of money.
The two, including chairman MA Awal, were also asked to appear on Monday over the alleged laundering of Tk 1.65 billion to UAE.
Anti-Corruption Commission (ACC) issued the notice for their appearance on January 8, said the constitutional body's Assistant Director (PR) Pranab Kumar Bhattacharya.
Meanwhile, ACC quizzed six more members of the bank's board of directors on the day in this connection.
Mr Awal was appointed as the chairman of the bank on December 21 following the resignation of former chairman M Wahidul Haque.
UNB said Mr Wahidul along with the bank's vice-chairman and a director resigned from the board of directors on December 21, 2017 amid allegations of laundering money to the UAE through two shady organisations in the name of investment.
The Commission also said it has imposed a ban on the travel of 16 senior officials of the bank.