Last week, leaders from more than 140 nations, the private sector, and civil society converged in New York for the 69th United Nations General Assembly and a number of events on pressing global challenges.

Our gallery below shows six top images from the week:

1. More than 300,000 people including UN Secretary-General Ban Ki-moon took to New York’s streets in an unprecedented march for climate action on Sunday, September 21. Photo credit: UN Photo.


2. President Barack Obama chaired a Security Council summit on foreign terrorist fighters. The Security Council unanimously adopted a resolution calling on Member States “to cooperate in efforts to address the threat posed by foreign terrorist fighters.” Photo credit: UN Photo/Kim Haughton.

3. As the deadly Ebola outbreak in West Africa topped the agenda in New York, the World Health Organization opened a training center in Sierra Leone to
teach health workers how to treat patients with the virus. Photo credit: World Health Organization.

4. Singer-songwriter and humanitarian Alicia Keys lights up the stage at the launch of her “We are here” campaign at the Social Good Summit. Photo credit: Stuart Ramson/Invision for United Nations Foundation/AP Images.



5. World leaders gather at the UN General Assembly Hall to discuss global issues. Photo credit: UN Photo/Amanda Voisard.

6. Secretary-General Ban Ki-moon designates actor and climate activist Leonardo DiCaprio a UN Messenger for Peace. Photo credit: UN Photo.