Tunisian police on Saturday arrested powerful businessman Kamel Eltaief, a former confidant of ousted president Zine El Abidine Ben Ali, as well as two key political activists, lawyers said.Eltaief, 68, was arrested at his home in the capital Tunis, lawyer Nizar Ayed said without providing further details.Police also arrested Abdelhamid Jelassi, a former senior leader of the Islamist-inspired movement Ennahdha -- fierce rivals of President Kais Saied -- as well as the political activist Khayam Turki.