Originally published by the Voice of America (www.voanews.com). Voice of America is funded by the US Federal Government and content it exclusively produces is in the public domain. Abbas Urges Hamas to Renounce Violence -------------------------------------- http://enews.voanews.com/t?ctl=1238226:3919ACA But Palestinian president also warned  Israel that taking a unilateral approach to peacemaking would fuel extremism Mahmoud Abbas Palestinian President Mahmoud Abbas has urged the ruling Hamas movement to renounce violence and respect peace deals with Israel, while also warning Israel that taking a unilateral approach to peace-making would fuel extremism. Mr. Abbas made his comments in a recorded speech broadcast Monday marking the anniversary of the founding of the state of Israel - a day Palestinians call "Nakba," or "the great catastrophe." He says Palestinians should not be satisfied with fiery speeches and slogans that could bring international isolation. The Palestinian leader said such rhetoric reinforces Israel's contention that there is no Palestinian partner in peace efforts. He also called on the Jewish state to release tax revenues it collects on the Palestinians' behalf that have been withheld since Hamas gained political power. Mr. Abbas recorded the message before his trip to Russia and other European states to seek political and financial support for the Palestinian Authority. .