The hashtag #FreeOurGirls is being inundated with doctored images of Burundian President Pierre Nkurunziza after three schoolgirls were arrested for defacing his photo.
The girls were charged last week with insulting the head of state, and face up to five years' imprisonment.
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BBC reports Burundian authorities are notorious for cracking down on human rights and dissent.
The schoolgirls, 15, 16 and 17 years-old, were arrested two weeks ago after they were found with textbooks with defaced images of the President.
Four others were arrested with them but later released.
Twitter users are posting their own version of a defaced President Nkurunziza in solidarity for the girls.
"Scribbling is not a crime," says one of the tweets.
Another says there is "no reason three teenage girls are in prison for doodling".