$50 Billion in Africa by XI Leads to Violence Against Chinese; Locals Show Intense Emotions

Recently, videos from the Democratic Republic of the Congo (DRC) showed Chinese people being beaten by locals. Many of the locals appeared very emotional.Another video from earlier this year shows two Chinese individuals in the DRC with their hands tied to a rack, left under the sun while being watched and insulted by local onlookers.Why are Chinese people being treated this way in the DRC? What happened?