NEW : Ghannouchi calls Ben Ali 's rule ` ` impossible '' Tunisia Tunis , Tunisia ( CNN ) -- Army tanks and armored personnel carriers patrolled the streets of Tunis Saturday , a day after the prime minister announced that he is the interim president -- the latest development in a story of unrest and public outrage in a tiny but significant corner of the Arab world . : He appears to be wielding the most power . Military manning posts in the suburbs of the Tunisian capital . Ben Ali welcomed in Jeddah by the king of Saudi Arabia .
NEW : Ghannouchi calls Ben Ali 's rule ` ` impossible '' Tunisia : He appears to be wielding the most power . Military manning posts in the suburbs of the Tunisian capital . Ben Ali welcomed in Jeddah by the king of Saudi Arabia .