( CNN ) -- A grizzly bear attacked and killed a hunter Friday in a remote part of northwestern Montana before being gunned down itself , authorities said . The man who was killed had been part of a hunting party of three men , said Mike Weland , a spokesman for Boundary County , Idaho , which borders Canada and abuts the area where the attack took place . By the time the other two hunters -- one of whom witnessed the attack -- arrived on the site , the man was dead , Weland said . One of the victim 's hunting partners eventually shot and killed the grizzly , according to the sheriff 's office . Authorities received a cell phone call about 10 a.m. reporting the incident near Buckhorn Mountain , the sheriff 's office said . Officials from multiple government agencies were at the site by Friday evening , Weland added a short time later in an e-mail to reporters . At that point , authorities determined that the incident -- initially believed to have happened in northern Idaho -- actually occurred on the Montana side of Buckhorn Mountain , according to Weland . Boundary County sheriff deputies remain on site , but jurisdiction was being transferred to authorities from Lincoln County , Montana . Weland said earlier Friday that authorities were talking with the two survivors and could see the attack site from a distance as they climbed . The sheriff 's offices , the Idaho Fish and Game Department , and the U.S . Fish and Wildlife Service are investigating . The name of the victim , who was not from Boundary County , was not being released until authorities could notify his next of kin . The incident follows a series of bear attacks in recent months in the United States . Two men were killed this summer in Yellowstone National Park by grizzly bears , Park Superintendent Dan Wenk said . In August , a lone 50-year-old man was bit by a grizzly bear in Montana 's Glacier National Park but was able to continue hiking until he found help , the National Park Service said . And earlier this month , two young campers were injured when they were attacked by a black bear at Stokes State Forest in northwestern New Jersey , the state 's Department of Environmental Protection said . CNN 's Anna Rhett Miller contributed to this report .
NEW : The attack was on the Montana side of Buckhorn Mountain , an Idaho official says . A man was hunting near the Canadian border when a bear attacked him , an official says . By the time the two others in his hunting party arrived , the man was dead , they say . Score: 6