A senior government official says Zimbabwe's 87-year-old President Robert Mugabe has returned to Singapore, his fourth visit there this year.
Presidential spokesman George Charamba said the trip is for an eye checkup after the longtime leader underwent cataract surgery in January. Charamba says "there is nothing to cause any alarm."
Mugabe is expected home on Sunday, the state media reported Friday.
At celebrations marking his 87th birthday in February, an increasingly frail Mugabe said even if his body "may get spent" his mind remained young and alert.
But seven weeks away in Asia since December have fueled doubts on the health of Zimbabwe's authoritarian ruler since 1980.