Metro Bank PLC's deputy chairman and nonexecutive director, Alastair Gunn, will step down from both roles, effective Dec. 31.

Gunn's departure comes after the lender's founder and former Chairman Vernon Hill stepped down from the board as a nonexecutive director in the week beginning Dec. 16.

Hill, along with CEO Craig Donaldson, resigned at the beginning of December amid Metro Bank's continued struggle to deal with the fallout of an accounting error revealed in January.

Meanwhile, the embattled bank appointed Sally Clark a nonexecutive director, effective Jan. 1, 2020.

Clark most recently served as chief internal auditor at Barclays PLC and was in charge of the vision and strategy for the bank's internal audit function.