Press TV reports.
"An International Security Assistance Force (ISAF) service member died following an improvised explosive device (IED) attack in southern Afghanistan today," the ISAF said in a statement.
The alliance has not yet released further details regarding the nationality of the slain soldier or the exact location of the incident.
However, most foreign forces stationed in southern regions of Afghanistan are from the United States, Britain and Australia.
According to the website icasualties.org, a total of 238 foreign troops, mostly US personnel, have lost their lives in Afghanistan so far this year.
Insecurity continues to rise across Afghanistan, despite the presence of about 130,000 US-led forces in the country.
A total of 566 US-led forces died in Afghanistan in 2011. However, 2010 remains the deadliest year for foreign military casualties, with a death toll of 711.
The high number of military casualties in Afghanistan has intensified opposition in the United States and other NATO member states against the protracted war in the country.
At least one US-led soldier serving with the International Security Assistance Force (ISAF) has been killed in a bomb attack in southern Afghanistan,