Authorities say another military service member assigned to help secure the U.S.-Mexico border has died in southern Arizona.

Officials at Peterson Air Force Base in Colorado Springs, Colorado, said in a statement that the military service member with the Southwest Border Support Mission was found dead Sunday near Ajo, Arizona.

They say the incident is under investigation, but foul play isn’t suspected.

The name of the military service member wasn’t released.

It’s the second such death this month.

The base previously announced the June 1 death of another military service member (U.S. Army Pfc. Steven Hodges) near Nogales, Arizona, who also was assigned to the Southwest Border Support Mission.

Base officials said foul play wasn’t suspected in that death either.

Hodges’ battalion commander, Lt. Col. Sean Lyons, said “every soldier in the Tomahawk Battalion is an essential member of our team.

“Private First Class Steven Hodges is sorely missed by his teammates and the entire Tomahawk family,” Lyons said in a statement. “Every soldier is a national treasure.

“We are grateful for all the young men and women who volunteer to serve our nation. We are humbled at the sacrifices their families continue to make on a daily basis, Steven and his family are in our prayers,” Lyons continued.

President Donald Trump assigned several thousand troops to the southwest border in recent months to support the U.S. Border Patrol.

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