bodies , discovered underwater , are believed to be two of the Italian tourists aboard the helicopter , the law enforcement source said . The Italian Foreign Ministry said consulate officials were working with New York authorities to identify the victims . Helicopter wreckage was found in about 30 feet of water , while the plane is believed to be near the midchannel point of the Hudson in deeper water , the source said . A side-scanning sonar is being used to pinpoint the plane and has identified a possible third debris field , the source said . The search is scheduled to resume Sunday morning , Debbie Hersman , chairwoman of the National Transportation Safety Board said at a riverside news conference late Saturday . Underwater visibility of about two feet hampered Saturday 's search effort , she said . All nine people in both aircrafts are thought to have been killed in the collision , New York Mayor Michael Bloomberg said . See where the collision occurred '' `` There was an accident which we do not believe was survivable , '' said Bloomberg , noting that the search for survivors had become a recovery mission . A
NEW YORK -LRB- CNN -RRB- -- Five Italian tourists visiting New York from Bologna are among the nine victims believed killed Saturday in a midair collision of a sightseeing helicopter and a single-engine plane over the Hudson River , a law enforcement source said . First responders gather on a pier after a plane and helicopter collided Saturday over the Hudson River . The tourists , who apparently died with the chopper 's pilot , were part of a group of 12 visiting the United States , the source said . The helicopter was operated by Liberty Helicopter Sightseeing Tours . The bodies of two adults and one child were recovered after the collision , which occurred around noon over the Hudson between New York and Hoboken , New Jersey , authorities said . The child is believed to be one of the three people on the plane , a single-engine Piper PA-32 Saratoga that took off from New Jersey 's Teterboro Airport , authorities said . A source involved in the investigation identified the pilot and owner of the plane as Steven Altman , whose brother Daniel and nephew Douglas also were among the victims . The two adult