The Immigration Department arrested four Bangladeshi nationals suspected of acting as agents offering fraudulent immigration services to foreigners in a special operation conducted in Kuala Lumpur and Bandar Bukit Raja, Selangor, on March 12 and 13.

Its director-general Zakaria Shaaban said the four foreigners, aged between 22 and 38, were detained following public tip-off and two weeks of intelligence gathering.

He said preliminary checks revealed...