Citigroup has warned UK staff of potential redundancies as it reorganizes, potentially affecting hundreds of jobs.

The bank, which has 16,000 UK employees, is entering phase two of its rationalization plans and will hold a consultation process for employees.

The bank did not inform British and Northern Irish workers of job cuts.

Citigroup’s CEO, Jane Fraser, announced earlier this month that it will eliminate management and positions, and it is unclear where the bank will lay off employees in the UK.

The bank will liaise with the London Consultation Forum for collective consultation and individually consult redundancy-risk staff.