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DALLAS (AP) — A 28-year-old U.S. airman from South Texas was among those killed in a suicide attack in Afghanistan.

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The Department of Defense said Tuesday that Staff Sgt. Michael A. Cinco of Mercedes was one of six American service members killed when an attacker drove an explosives-laden motorcycle into their patrol Monday near Bagram Air Base.

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Cinco was assigned to the Air Force Office of Special Investigations, 11th Field Investigations Squadron, Joint Base San Antonio-Randolph, Texas.

The Taliban claimed responsibility for the attack. Monday was the deadliest day for American troops in Afghanistan since May 2013, when five were killed by a roadside bomb in the country’s south and two killed by an Afghan soldier in an insider attack in the west.

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