PALESTINE ALERTS SECURITY FORCES BEIRUT, MARCH 5 (from RIA Novosti's Igor Popov) - Palestine alerted its security forces as Israel is expected to retaliate yesterday's terror act in Natanya, Abderrazzak Al-Majeida, in charge of Palestinian security for the Gaza sector, says in a statement. Determined to build up vigilance and police and national security readiness for public safety, the Palestinian Authority banned the entire forces' participation in Id ul Adha (Feast of the Sacrifice), celebrated by Muslims today, says the statement. An unidentified suicide terrorist died in a Sunday blast in the centre of Natanya, an Israeli seaside resort, to kill three and injure thirty or more. It came as a fourth major terror act in Israel since Ariel Sharon was elected Prime Minister in a poll of February 6.