Japan also confirmed the incident, which is the latest in a series of attacks on Japanese nationals living in China.
Two Japanese nationals were killed last month in Dalian, a city in northeastern China, over a business dispute, Chinese authorities said on June 3.
Local police identified the suspect as a 42-year-old Chinese man surnamed Yuan, who has lived in Japan for a long time, according to an online statement by the Dalian Public Security Bureau. Police said that Yuan was arrested on May 24, a day after the incident occurred.
