Mugabe appeared frail at his birthday party on Saturday, when he stood for more than an hour to deliver his speech, but he paused for lengthy periods and mumbled at times PIC:Zimbabwean President Robert Mugabe, whose health is the subject of frequent speculation, flew to Singapore for medical tests AFP Zimbabwean President Robert Mugabe, who celebrated his 93rd birthday last week, flew to Singapore on Wednesday for a “scheduled medical review”, his spokesman said. Mugabe appeared frail at his birthday party on Saturday, when he stood for more than an hour to deliver his speech, but he paused for lengthy periods and mumbled at times.