Stars & Stripes reports that the Department of Defense announced the death of two US soldiers and that five more wounded in Northern Iraq today. They claim that the casualties did not result from contact with the enemy and that the incident is under investigation.
The latest deaths bring to nine the number of Americans killed supporting Operation Inherent Resolve this year, including noncombat deaths. Nearly 50 Americans have been wounded in action since the anti-ISIS campaign began in August 2014, according to Pentagon data.
Booby trap?
Negligent discharge?
Just speculating but I think it was perhaps a vehicle rollover or collision.