Martha O’Donovan, 25, was arrested on Friday morning at her home near Harare, the country’s capital, and was taken into custody on a charge of insulting or undermining the president and trying to overthrow an elected government.
Police say that on October 11, O’Donovan tweeted that Mugabe, 93, is a ‘very selfish and sick man’ and claimed that he was surviving on a catheter.
They claim they traced the anonymous Twitter account @matigary, which allegedly posted the tweet, to her address through its IP address.
On Saturday, O’Donovan was held in custody after a brief court hearing and she must now wait until November 15 to return to court.
Her lawyers say they will appeal for her to be granted bail at the High Court on Monday.
The Twitter account police say she was behind was still active on Friday and Saturday despite the fact that Martha, who is from Martinsville, New Jersey, was in custody.
O’Donovan, a graduate of NYU, has been in Zimbabwe for a year working for the local TV network Magamba and bar tending.
Martha O’Donovan, 25, is pictured arriving at Harare Magistrates Court in Zimbabwe on Saturday.
After a brief hearing, she was remanded in custody and must now wait until November to reappear in court for a bail hearing.
Local media shared a photograph of O’Donovan’s arrest warrant.
It claims that on October 11, she tweeted: ‘We are being led by a selfish and sick man’