RAMALLAH, July 30 (Xinhuanet) -- Israeli army troops on Saturday tightened security measures in West Bank's towns and cities, where they blocked people's movement between the south and the north, Palestinian security sources and residents said.

    The sources complained that the Israeli soldiers obstructed the transportation of the pedestrians on the checkpoints and forced them to wait for several hours under the excuse of checking their identities.

    Eyewitnesses in northern West Bank said that Israeli army troops erected at predawn new checkpoints near Tubas.

    In Qabateya town south of Jenin, an Israeli army unit backed by armored vehicles and tanks stormed the town and searched houses, according to Palestinian security sources.

    The Israeli soldiers arrested two Palestinians, 55-year-old Rashed Abu Rab and 18-year-old Mahmoud Saba, during the raid, said the sources.

    He added that Israeli army also stormed the town on Friday and arrested 18-year-old Rami Abu Rab.

    In Dora town west of Hebron, Israeli army arrested two people during house searching, sources closed to the detainees' families said.

    The Israeli army surrounded the house of the detainee, Maher Rajoub, and forced the family to stay in one room. Enditem