KANDAHAR, Afghanistan, Aug 4 (Reuters) - A suicide car bomb hit foreign troops in the southern city of Kandahar on Saturday killing two Afghan civilians, witnesses and Afghan troops said.

Canadian troops are the biggest contingent of foreign soldiers from the 37-nation NATO-led International Security Assistance Force (ISAF) in Kandahar.

Two apparently wounded foreign soldiers were taken away from the scene, Afghan troops at the scene said.

In the last 18 months, Afghanistan has seen its worst period of violence since the Taliban were ousted from power by U.S.-led and Afghan forces in 2001.

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