Three Palestinians were killed during clashes with Israeli security forces in East Jerusalem and the occupied West Bank. Palestinian officials said, hundreds were injured in the violence, after days of friction over a Jerusalem holy site boiled over. <br/><br/>Palestinian President Mahmoud Abbas said he is freezing all contacts with Israel amid unrest at the site. Tensions have soared since two Israeli policemen were killed a week ago. <br/><br/>Three Israeli Arab gunmen shot the officers near the holy site known to Muslims as Haram al-Sharif and to Jews as the Temple Mount. The gunmen were shot dead after being pursued on to the site.<br/><br/>In a separate incident yesterday, three Israelis were stabbed to death after an assailant entered a home in a West Bank settlement. <br/>