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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.

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.

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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