Two Hong Kong victims of a brutal attack on a train in Germany in July returned to the city last week, but two others still need medical treatment in the country. Yau Shu-ping, 62, and his wife Wong Pui-king, 58, were discharged from the University Hospital of Wuerzburg and came home last Friday morning. Their daughter Tracy Yau Hiu-tung, 27, and her 31-year-old boyfriend Edmund Au Yeung Chi-kin remained in medical care. ‘Unbelievably cruel act’ condemned by German chancellor after axe attack on Hong Kong tourists “The health condition of the four patients from Hong Kong has generally significantly improved. Two patients have returned to Hong Kong, two patients are still at our hospital,” a hospital spokesman said. “A longer period of convalescence and rehabilitation is to be expected in the latter patients. Acute threatening of life has relieved.” The Hongkongers were attacked on July 18 while travelling from Treuchtlingen to Wuerzburg in Bavaria. Their 17-year-old attacker – who was believed to be influenced by Islamic State and was shot dead by police as he fled – first assaulted Tracy Yau and her mother. Tracy’s father and her boyfriend turned their backs to the attacker while shielding relatives, but that act of selflessness meant they suffered critical injuries. The couple’s 17-year-old son, Yau Chak-ming, was unhurt. Au Yeung suffered severe head trauma and woke from a coma a month ago. A source said Tracy Yau, who was slightly injured, was receiving psychological care. The Hong Kong Immigration Department confirmed two patients had returned to the city last week. It said the department would continue to liaise with relevant organisations to assist the family.