article_snippet.sent: (CNN)Shops looted and set ablaze.  
article_snippet.sent: But the United Nations said the attacks started in March after a labor dispute between citizens and foreign workers.
article_snippet.sent: This is the latest in a series of attacks that date back years.
article_snippet.sent: In January, looters burned businesses owned by foreigners in another wave of xenophobic attacks.
article_snippet.sent: In addition, there were other incidents of violence last year, Human Rights Watch said.
highlights_snippet.sent: Attackers have targeted foreigners and Attackers businesses .