The international community must secure a binding deal against climate change at key UN talks in Paris next week, German Chancellor Angela Merkel said.
UN envoy Martin Kobler urged rival Libyan politicians to sign up to a UN-brokered agreement for power sharing in the war-torn nation during weekend talks with both sides.
The unanimous UN Security Council vote backing action against Islamic State shows the world is united against the "evil death cult", British Prime Minister David Cameron said.
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.
UN Secretary-General Ban Ki-moon condemned air strikes by the Saudi-led coalition on a hospital run by the MSF medical charity in Yemen and called for an end to the fighting.
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.
UN Secretary General Ban Ki-moon said more should have been done to tackle the "root causes" of the worst refugee and migrant crisis since World War II.
The UN Security Council will vote on Friday on a draft resolution authorizing European military action against migrant smugglers in the high seas off Libya's coast.
The Syrian crisis can only be solved through peaceful ways, Kazakhstan’s Foreign Affairs Minister Yerlan Idrissov said at the General Policy Debates at the UN headquarters in New York.
Turkey's prime minister used his UN General Assembly speech to press demands for a "safe zone" to be created in Syria to protect civilians fleeing barrel bombs and the Islamic State group.
Kazakhstan‘s President Nursultan Nazarbayev has met with presidents, PMs and top managers of major American companies during his visit to the United States.
President of Kazakhstan Nursultan Nazarbayev took part in the UN Sustainable Development Summit for post-2015 agenda and Sustainable Development Goals.
Russia will propose a United Nations Security Council resolution on fighting "terrorism", deputy foreign minister Mikhail Bogdanov was quoted as saying by RIA Novosti news agency.
Hungarian Prime Minister Viktor Orban aims to meet UN chief Ban Ki-moon in New York this week ahead of a possible closure to thousands of migrants of the EU country's border with Croatia.