The board of HSBC Holdings, headquartered in the U.K., has appointed headhunters to begin the search for a new chairman to succeed Mark Tucker, according to a report by Sky News on Saturday.

The London-listed, Asia-focused bank is considering both current non-executive directors and external candidates for the role, the report indicated, citing sources familiar with the matter.

HSBC has engaged headhunters, including MWM Consulting, to oversee the recruitment process.

The bank did not immediately respond to a request for comment from Reuters.

Tucker joined HSBC in March 2017 from Hong Kong-based insurer AIA, breaking tradition by selecting an outsider to follow veteran chairman Douglas Flint.