Two separate attacks have killed at least four US-led soldiers in Afghanistan amid a surge in Taliban attacks against the foreign forces in the country, Press TV reported.
The International Security Assistance Force (ISAF) says three soldiers were killed after a militant attack in the country's volatile south.
The nationalities of the soldiers and the exact location of the attacks have not yet been disclosed.
Earlier Afghan officials reported the death of one American soldier in Kunar Province, in an exchange of fire with Taliban militants.
The Taliban claim ten American soldiers were killed and a helicopter was downed during the attack.
Also on Saturday Taliban militants attacked a US military base in the eastern city of Jalalabad, claiming afterwards to have killed dozens of American and Afghan soldiers during the ambush.
At least 636 foreign troops have lost their lives in Afghanistan so far, making 2010 the deadliest year for US-led forces since the 2001 invasion of the country.
The rising number of casualties of the US-led foreign forces has increased opposition to the Afghan war in the countries which have contributed troops to the mission.