A 59-year-old man has died while working on a fire line in southeastern Oregon.

Carolyn Chad, a spokeswoman for the federal Bureau of Land Management, says Kevin Hall apparently suffered a medical issue while he was working for a bulldozer contractor on the Grassy Mountain fire, about 60 miles southwest of Boise, Idaho.

Hall, from Ontario, Ore., was found unresponsive in a pickup truck Saturday. Other workers administered CPR but couldn't revive him.

Chad tells KTVZ-TV Hall was supporting a bulldozer crew as it worked to improve an existing fire line.

He is the third person to die in Oregon this month while fighting wildfires.

John Hammack, of Madras, was killed by a falling tree in the remote Mount Washington Wilderness Area in the high Cascades, and 19-year-old Jesse Trader was killed in a water truck crash in southern Oregon.

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Information from: KTVZ-TV, http://www.ktvz.com/