A homicide probe has been was launched after the disappearance of Yanfei Bao, who went missing on Wednesday, July 19. Yanfei BaoThe 44-year-old mother-of-one, was last seen in the Hornby area of Christchurch about 10.30am. “The Dive Squad is utilising sonar technology to search beneath the surface of the water and identify anything that may be of interest,” Reeves said. “We remain committed to finding Ms Bao and more people are expected to join the search tomorrow,” Reeves said. Police Search and Rescue, LandSAR volunteers, Coastguard, Surf Lifesaving, the Police Specialist Search Group and Police Dog Team, Garden City Helicopters and AREC (Amateur Radio Emergency Communications) were expected to join the search tomorrow.