Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: UN urged to punish Burundian Hutu rebels AFRICAN leaders appealed to the United Nations Security Council yesterday to impose sanctions on the Burundian rebel group that claimed responsibility for the massacre of at least 160 refugees at a UN camp in Burundi. 

World