New York ( CNN ) -- A New York Police Department helicopter made an emergency landing in the water off Floyd Bennett Field in Brooklyn Wednesday afternoon , according to NYPD Deputy Commissioner Paul Browne . Six people were aboard the aircraft . All got out safely but all six suffered minor back and neck injuries , according to Browne . `` They were flying during our coverage of the presidential visit and were on standby for that and the United Nations General Assembly , '' said Browne , referring to President Barack Obama , in New York to speak at the United Nations . Browne says the crew was coming in for a landing at the time of the crash . `` They had some time and they were coming in to top off their fuel . They were not out of fuel , '' he said . `` About 30 to 35 yards from the ( landing ) field , there was some kind of mechanical difficulty which caused them to make an emergency landing on the water , `` Browne said , adding that inflatable pontoons on the aircraft deployed around its skids . Police and private boats quickly approached the chopper . `` They ( the crew ) stepped off the chopper onto the boats . They were never in the water , `` Browne said . Browne says there was a pilot and co-pilot , a crew chief , a crew chief in training , and two scuba divers on the helicopter . Police Commissioner Ray Kelly met with the crew at a local hospital . None of the crew was admitted to Lutheran Medical Center . The National Transportation Safety Board will investigate the incident . CNN 's Rob Frehse contributed to this report .
NEW : The rescue helicopter was preparing to land when it had mechanical difficulty . NEW : All four aboard suffered minor neck and head injuries .