Iranian-Linked Accounts Closure by Malaysian Banks - Justified?

Reuters had reported on 30 Oct 2019 that CIMB and RHB had initiated mass closure of Iranian-linked accounts maintained at their banks which had ignited a furore.  In another report by The Star, carrying news from The Straits Times on the same day, had highlighted the same action had also impacted several other nationalities, namely Algerians, Iraqis, Nigerians, Syrians, Ukrainians and Yemenis.