File Photo: Ben M barek (right) gestures during a demonstration against the president, Kais Saied, in Tunis in 2021. AFP
"Jawhar was arrested late last night and we haven't seen the charges against him," his sister Dalila Msaddek, a lawyer, told AFP on Friday.
Left-leaning Ben Mbarek, once a government adviser, is a prominent member of the opposition coalition the National Salvation Front (NSF).
NSF head Ahmed Nejib Chebbi told AFP that five detainees including Ben Mbarek, senior NSF member Chaima Issa and Chebbi's brother Issam, also a prominent politician, had appeared in handcuffs before prosecutors on Friday morning.
*This story was edited by Ahram Online
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