Kassam rockets were fired at Friday from the Gaza Strip at southern Israel, as IDF troops operating in Gaza and the West Bank discovered and safely detonated two bombs. Four Kassams landed in the western Negev on Friday afternoon. No one was wounded and no damage resulted from any of the hits. Near the Gaza-Israel border fence, IDF soldiers discovered a 12-kilogram bomb. Sappers detonated the device in a controlled explosion, and no one was wounded. Another bomb was discovered In the West Bank. Sappers destroyed the 35-kg. bomb without incident. No damage was caused by either of the two devices. In another development Friday, the IDF and the Shin Bet (Israel Security Agency) announced that they had arrested on Tuesday a Palestinian suspected of perpetrating a shooting attack on an Israeli neighborhood. Za'ahad Dagrah, 36, was also suspected of being an active member of a terror cell planning attacks against Israelis. He was apprehended by security forces near Ramallah and detained for interrogation. Overnight Thursday, IDF troops arrested four Palestinian fugitives and uncovered a weapons cache in separate operations in the West Bank. Three Hamas operatives were arrested near Bethlehem and a fourth Hamas member near Hebron. IDF soldiers also found an M-16 rifle and dozens of bullets while conducting sweeps in Kfar Ekev, near Ramallah.