Washington, June 12: US Secretary of State Colin Powell urged the world community today to fight radical Palestinian groups like Hamas, which claimed responsibility for the suicide attack that killed more than a dozen people in Jerusalem. "I've been on the phone most of the morning talking to the leaders in the region, to encourage them to come down hard on Hamas and Palestinian Islamic Jihad (PIJ) and the other terrorist organisations that are determined to deny us this latest opportunity for peace, who are determined to deny the Palestinian people the opportunity to have their own homeland, who are determined to use terror to destroy the promise that was put before the world last week in Aqaba," Powell told an economic conference here. "We are just as determined to not let that happen, and we are encouraging the Palestinian leadership, we are encouraging the Israeli leadership, to act with determination, to punch through this wave of violence, to make sure that it does not stop us, so that we can continue moving forward on the roadmap" to peace. Later, he told reporters it is "incumbent on every nation around the world to speak out and put the hammer down on Hamas and the PIJ, and stop funding them, stop allowing any resources to go to them." Bureau Report