Another photo of 93-year-old Zimbabwe president Mugabe sleeping at public function surfaces online

President Robert Mugabe was spotted taking a nap while his wife, Grace Mugabe was chastising presidential spokesperson George Charamba before a stunned Zanu PF crowd and a television audience.

Grace was shouting the information ministry permanent secretary down for allegedly influencing the State media to ignore her philanthropic work while reserving good coverage for others.

Charamba has previously said President Mugabe's apparent sleepy postures would in fact be an attempt by his boss to avoid direct light onto his tired eyes.

But Saturday was one of the chilliest days of the current winter period with neither sunlight nor artificial light at the time to pin the blame on.