Israeli authorities said Thursday they had opened an investigation into a video showing gun-wielding Jewish extremists at a wedding celebrating the death of a Palestinian toddler in a firebombing.
US Secretary of State John Kerry told an Israeli gathering at the United Nations that a two-state solution in the Middle East was "not an impossible dream" but would require courage.
Israeli Prime Minister Benjamin Netanyahu voiced pessimism about the prospect of peace with the Palestinians, suggesting the current stalemate was likely to remain in place.
EU foreign policy chief Federica Mogherini urged Israel Premier Benjamin Netanyahu and Palestinian president Mahmud Abbas to meet Quartet representatives "within days" in the hope of kick-starting stalled peace talks.
UN Secretary-General Ban Ki-moon told the Security Council that he was "not optimistic" following his talks with Israeli and Palestinian leaders to urge them to defuse tensions.
US Secretary of State John Kerry said he will engage Israeli and Palestinian leaders on the "basics" of administering Jerusalem's holy sites to try to calm tempers in the city.
US State Secretary John Kerry called for an end to the wave of deadly Israeli-Palestinian violence but said "Israel has every right in the world to protect itself".
Prime Minister Benjamin Netanyahu vowed that Israel would not bow to "knife terror" as three new stabbings in Jerusalem spread more fear among Israelis and Palestinian unrest showed little sign of slowing.
Prime Minister Benjamin Netanyahu said Israel was "waging a fight to the death against Palestinian terror", and ordered tough new measures after the killing of two Israelis in Jerusalem.