An American woman has been jailed for trying to "overthrow" Robert Mugabe of Zimbabwe.

Martha O'Donovan was arrested in the Zimbabwean capital Harare on Friday Police say she tweeted 'we are being led by a sick and selfish man' on October 11 They claim it was a crime of subversion against President Robert Mugabe It came from a Twitter user who tweets under the handle @matigary Officials say they tracked its IP address to O'Donovan's home in Zimbabwe The woman's lawyers say she is not behind the account which posted the tweet The 25-year-old NYU graduate faces up to 20 years behind bars if charged On Saturday, she was held in custody after a brief court hearing in Harare She will next appear in court on November 15 for a bail hearing ...