Chile cancelled the UN climate change conference as anti-government protests continued.
The nation was due to host two major international summits, which now remain cancelled. The COP25 climate summit was scheduled for 2 to 13 December, while the Apec trade forum was next month.
The United Nations is now looking at alternative venues.
President Sebastián Piñera said the decision had caused him “pain” but his government needed “to prioritise re-establishing public order”.
World leaders were to gather at this year’s Conference of the Parties (COP) to discuss the implementation of the Paris Accord, that was signed in December 2015.
This is the first time a country has pulled out of hosting the conference at such short notice.
Chile’s decision comes amid global climate protests, including a week of strikes led by environmental activist Greta Thunberg last month.
And as the news was announced, a US-based organisation also separately revealed that millions more people than previously thought were at risk of coastal flooding from climate-driven sea-level rise within the next century.