U.S. Ambassador to the United Nations Nikki Haley cut short her visit to South Sudan, after hundreds of people protested against South Sudanese President Salva Kiir at Haley’s event. Her departure came after Haley said the U.S. has lost trust in Kiir’s government—which the U.S. has supported since South Sudan’s independence in 2011.

Nikki Haley: “We’re disappointed by what we’re seeing. This isn’t what we thought we were investing in. What we thought we were investing in is a free, fair society where people could be safe. And South Sudan is the opposite of that.”

The United Nations warns an ethnic cleansing campaign carried out by the South Sudanese government has killed thousands of civilians, triggering a massive refugee crisis.