Four helicopter crew were pulled from the Atlantic Ocean off the east coast of the United States after a US Navy helicopter went down during a routine operation, the Navy said according to dpa. The search continued for a fifth person. The four people who were recovered were transported to a local hospital, the Navy said, adding that the extent of their injuries was not known. None of the crew has been identified. The Navy described the accident as an "emergency water landing." It said a Coast Guard cutter and two helicopters were involved in the search and rescue operation.