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3 US soldiers killed by Afghan suicide bomber

Soldiers are seen in Aghanistan in this file photo.

June 20, 2012 12:00:00 AM PDT
A suicide bomber claimed the lives of three U.S. service members in Khost Province in eastern Afghanistan on Wednesday.

The powerful blast also killed an Afghan interpreter and 17 Afghan citizens. The suicide bomber rammed a vehicle packed with explosives into a military convoy.

Afghan officials said the bomber stuck as the convoy was passing. But a NATO spokesman said it happened at a checkpoint in Khost City, the capital of the province of the same name.

It was the third day in a row troops were targeted by insurgents. The violence has interrupted the effort to prepare and train Afghans for the U.S.'s withdrawal in 2014.

The Associated Press contributed to this report.