Zimbabwe President Robert Mugabe (file photo)
Zimbabwe President Robert Mugabe (file photo)

A spokesman for Zimbabwe President Robert Mugabe says his three-day medical trip to Asia is " no cause for alarm".

President Mugabe's spokesman says he went to Singapore Thursday for a follow up examination following cataract surgery last year.

He is expected to return home on Sunday.

Mugabe has spent a month in Asia for medical purposes since December, fueling doubts about the stability of his health.

Zimbabwean officials have also refuted reports the 87-year-old leader has traveled to Asia for prostate cancer treatment.

Mugabe has ruled  Zimbabwe since 1980.

Some information for this report was provided by AP, AFP and Reuters.