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The Boston Globe

World

Friendly fire kills 5 US troops in Afghanistan

KABUL — Five American troops were killed in southern Afghanistan in a rare friendly fire airstrike that hit a team of Afghan and US troops conducting a security operation ahead of Saturday’s presidential runoff election, US and Afghan officials said Tuesday.

It marked the deadliest day for American troops in Afghanistan since a helicopter crash in December in the same province, Zabul, killed six service members. US military officials said they are investigating the Monday attack.

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