From the Financial Times:
Mr Tung, Hong Kong’s first post-colonial leader following the 1997 transfer of sovereignty from Britain, has faced growing criticism of his administration.
In recent months he has played a less visible role, with Sir Donald Tsang, the chief secretary, taking charge of sensitive issues on the territory’s agenda. Under Hong Kong’s post-colonial constitution, Sir Donald would take over as acting chief executive should Mr Tung step down. Mr Tung’s office has declined to comment on Tuesday.