A nurse in Germany, already serving a life sentence for murdering 10 patients and attempting to murder 27 others, is now being investigated in connection with additional suspected deaths. Channel NewsAsia reports investigators are examining 139 further cases dating back to 2010.

Daily Mail reports prosecutors are looking at 121 cases they believe may be linked to the former palliative care nurse, who was convicted last year and jailed after being found responsible for killing elderly patients using lethal drug doses. The outlets do not fully match on the exact number of additional cases, though both describe an expanded probe into potential links to deaths occurring over a multi-year period. The investigations are tied to the same individual and are presented as efforts to determine whether more deaths can be connected to the earlier convictions and attempted murders.