美国曾警告说，要对制造南苏丹暴力的人实行旅行和经济制裁。南苏丹暴力导致1百多万人流离失所。
美国国务院发言人哈夫星期三说，克里将利用这次出访非洲的机会讨论一系列问题和计划，包括美国帮助艾滋病患者及艾滋病毒感染者的项目。
U.S. Secretary of State John Kerry is in Ethiopia for talks Thursday with the Ethiopian, Ugandan and Kenyan foreign ministers about halting the conflict in neighboring South Sudan.
Kerry arrived late Wednesday in Addis Ababa, where a senior State Department official has said the secretary will deliver "tough messages" for both the South Sudanese government and rebels.
The United States has threatened travel and financial sanctions on those responsible for violence that has displaced more than a million people.
State Department spokeswoman Marie Harf said Wednesday that Kerry will use his multi-stop trip in Africa to discuss a range of issues and initiatives, including the U.S. program to help those with HIV and AIDS.
