Israel on Tuesday clamped a closure on the West Bank and Gaza, banning virtually all Palestinians from Israel, in its first response to a suicide bombing that killed five Israelis outside a shopping mall. Israeli officials, seeking to put pressure on the Palestinians to crack down on militants, also pledged painful retaliation for Monday's suicide bombing by the Islamic Jihad group in the coastal city of Netanya. "We decided to operate in a much broader, much deeper and more intensive manner against the Islamic Jihad infrastructure, and I hope that we will be able to prevent such attacks in the future," Defense Minister Shaul Mofaz told Army Radio on Tuesday following an urgent late-night meeting of security officials.Israeli security officials said the army would target Islamic Jihad operatives in the West Bank, both through arrest raids and targeted killings of operatives. The army will also renew airstrikes in the Gaza Strip in response to any rocket attacks launched from the area.