All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
Any bank that lends people money with Riba (interest and/or usury) is a Riba bank regardless of where it is established. So, it is forbidden to deal with it.
If a person unknowingly dealt with this bank and got some profit based on interests, he should not use that money himself.
Firstly, he should repent from this sin.
Secondly, he should spend that money on some public interest like public roads or public bathrooms… etc.
For more benefit, kindly refer to Fatwa 83783.
Allah Knows best.