Officials in Afghanistan say roadside bombs in the south and north of
the country have killed six foreign troops and at least two Afghan
NATO says four American soldiers were killed by a roadside bomb outside the northern city Kunduz. Local officials say they were training Afghan security forces.
In southern Afghanistan, local officials say a suicide bomber detonated a car bomb near the main gate of the regional NATO military base, killing at least two civilians and wounding 14 others.
Military and police officials say the attacker blew himself up near the entrance of the Kandahar Air Field early Monday.
In a separate blast in the south, NATO officials said a roadside bomb killed two foreign soldiers.
Meanwhile, Russia says it has agreed to let the United States fly troops and weapons across its territory to Afghanistan.
The United States and NATO forces are exploring alternative supply routes following increasing violence on the main overland transport routes through Pakistan.
The agreement follows talks in Moscow between U.S. President Barack Obama and Russian President Dmitry Medvedev.
Under the announced deal, Russia will allow 4,500 U.S. military flights annually -- or about 12 each day -- over Russian territory.