First photo of Robert Mugabe and his now Humbled looking wife emerge online

 A picture of former Zimbabwean president Robert Mugabe, 93, and his wife Grace, purported to have been taken just before he signed his resignation letter on Tuesday - has gone viral on social media.

The picture shows Mugabe and Grace with the veteran leader's "friends", including the country's former reserve bank governor Gideon Gono.

According to social media users, Grace looks "humbled".

@ali_naka wrote: “Moments before Resignation, Grace looking “humbled” Former Reserve Bank Governor Gono almost in tears! People get drunk on power! Mugabe had been ruling for 37 years but still too sad to go!!! Unbelievable #MugabeResignation”

@mtyala wrote: “Grace looks like she hasn’t slept in days, the arrogance wiped from her face. What’s “stress” in Shona?