The move comes a day after Facebook closed "fake" accounts it said were linked to the government.
Mawada al-Adham and Haneen Hossam were given two years in prison for posting "indecent" videos.
Tweeters query why the role has not been given to a prominent Kenyan like actress Lupita Nyong'o.
An investigation is opened into the disappearance of Diary Sow who has not been seen since 4 January.
Five things you need to know about Uganda's divisive election.
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