It's been a deadly day for Americans in Afghanistan.

US Troops in Afghanistan (David Furst/AFP/Getty Images)

Seven U.S. service members have been killed. The U.S.-led coalition reports five were killed by a roadside bomb in southern Afghanistan, and coalition spokesman Capt. Luca Carniel confirmed that all five were American.

The coalition did not disclose the location of the roadside bombing, but a spokesman for the governor of Kandahar province said the coalition patrol hit the bomb in a district known as the spiritual birthplace of the Taliban.

Later, the coalition reported that a soldier with the Afghan National Army turned his weapon on coalition troops in the west, killing two in the most recent of so-called insider attacks.

The attacks come about a week after the Taliban announced the start of their spring offensive.

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