JERUSALEM, July 26 (Xinhuanet) -- Israeli Shin Bet domestic security service is considering placing leaders of extreme right-wing movements in administrative detention prior to the Gaza disengagement, local newspaper Ha'aretz reported on Tuesday.

    Shin Bet chief Yuval Diskin told the Knesset (parliament) Foreign Affairs and Defense Committee that the security service "has boosted its surveillance of extreme right-wing cells working to harm public order and life."

    Diskin is of the opinion that the administrative detention should only be used in extreme cases in which it would not otherwise be possible to prevent the violent activities of these individuals, said the paper.

    He also told the committee that there is a 50 percent chance that security forces carrying out the disengagement will come under fire by Palestinian militants.

    The Palestinian National Authority (PNA) is interested in the disengagement going through smoothly, but is weak and suffering from a "political vacuum", said the official.

    Diskin said he believed that Palestinian radical movement, the Islamic Resistance Movement (Hamas) would have interest in calming ¡¡tensions in the Gaza Strip following the disengagement, but would escalate its activities in the West Bank in order to "heat up" the area.

    Israel plans to evacuate all the 21 Jewish settlements in the Gaza Strip and four in the northern West Bank from mid August. Enditem