Communicated by Prime Minister's Media Advisor Jerusalem, September 6, 1999 PM Barak condemns terrorist attacks   Prime Minister Ehud Barak, yesterday evening (Sunday, Sep 5, 1999), said that serious attacks had been prevented in Tiberias and Haifa, and that the perpetrators themselves had apparently been killed. The Prime Minister instructed the relevant authorities to quickly investigate the circumstances surrounding the incidents, and to immediately act upon the conclusions of this investigation. Israel will not accept any form of violence or terrorism against innocent civilians. The Prime Minister also extended his wishes for a rapid recovery to those injured in the attacks.