THREE prominent opponents of Tunisian President Kais Saied who were arrested last month and accused of conspiring against state security have gone on hunger strike, their lawyer and the son of one of them said. Former finance minister Khayam Turki, Attayar party co-founder Ghazi Chaouachi and protest leader Jawher Ben Mbarek were all detained as part of a crackdown on leading critics of Saied that has drawn a rebuke from rights organisations. Islam Hamza, a lawyer for the three men, said they had all begun a hunger strike. Chaouachi's son Youssef told Reuters authorities had told him they were moving…