Thousands of ethnic Uzbek refugees remained stranded in Kyrgyzstan on Tuesday, unable to reach Uzbekistan after Tashkent closed its border to people fleeing a deadly conflict. Uzbekistan has issued an urgent plea for international aid to cope with estimates of up to 100,000 refugees now inside the country as it strives to cope with the escalating humanitarian catastrophe. Violence in southern Kyrgyztan over the last five days has claimed at least 170 lives.Duration: 00:54