The incidents have sparked a diplomatic race row with the African Union, various African governments and even the United States all putting pressure on Beijing over the reported treatment of black migrants, who are predominantly from African countries. Ghana, Nigeria, Kenya and Uganda are among those that have asked for explanations from the Chinese government. “I don’t know where I will sleep tonight,” a man from Ghana says in a nighttime video, luggage strewn on the streets. “We are Nigerians, Ugandans and Ghanaians; we are stranded now.”