In this photo taken on March 1, 2018, people walk in the "Little Africa" district in Guangzhou, the capital of southern China's Guangdong province. - The commercial hub has long been a magnet for fortune-seeking Africans, but traders and students say they face unfavourable visa rules and increasingly heavy policing. (Photo by FRED DUFOUR / AFP) / TO GO WITH AFP STORY CHINA-AFRICA-TRADE-IMMIGRATION,FEATURE BY JOANNA CHIU (Photo credit should read FRED DUFOUR/AFP/Getty Images)
