The victims included a pilot and three people who worked for the Alaska Division of Geological and Geophysical Surveys, officials said.
A helicopter carrying a pilot and three passengers who had been conducting field work for an Alaskan government agency crashed on Thursday night, killing all four people on board, the National Transportation Safety Board said on Saturday.
The wreckage of the helicopter, a Bell 206, was found in a large, shallow lake in an extremely remote area about 50 miles southwest of Utqiagvik, which is the northernmost community in the United States and home to about 5,100 residents.
Officials are still investigating the cause of the crash, the N.
