HONG KONG, June 27, 2016 (Xinhua) -- A family member of Thomas Cheung attends a memorial service held for him at the fire site in south China's Hong Kong, June 27, 2016. Thomas Cheung, a 30-year-old senior station officer,died while battling fire in an industrial building in Hong Kong's East Kowloon on June 25.(Xinhua/Ng Wing Kin)