Israeli security forces on Thursday raided a West Bank town after three deadly attacks rocked the Jewish state in a week, with two Palestinians shot dead and a third killed after he launched a knife attack on a bus.The violence comes after a Palestinian armed with an M-16 assault rifle killed five Israeli civilians in the streets of Bnei Brak, an Orthodox Jewish city near Tel Aviv, on Tuesday night.That shooting took to 11 the number of people killed in the week of violence carried out by Israeli Arabs and Palestinians, days before the holy Muslim month of Ramadan begins.