Ramallah, Safar 28, 1432, Feb 01, 2011 SPA -- The Israeli occupation forces have launched a campaign of searches and arrests against the Palestinians in several West Bank districts. Palestinian sources reported that the Israeli occupation forces on Tuesday arrested 12 Palestinians during a raid in several areas in the governorates of Ramallah, Bethlehem and Qalqilya. --SPA 14:22 LOCAL TIME 11:22 GMT www.spa.gov.sa/861103