Afghan government Tuesday blamed foreign hands for the deadly bomb attack that shocked southern Kandahar province Monday.
"Though the investigation is going on, preliminary results indicate the suicide attacker was a foreigner," Presidential spokesman Jawed Ludin told journalists at a press conference.
In the fatal explosion rattled Kandahar Monday, according to US military sources, four American soldiers were wounded while locals disputing the claim and putting the casualties five dead.
Without hinting at any specific country, the spokesman accused foreign nations of interfering in the internal affairs of Afghanistan, although Taliban has claimed responsibility after the bomb attack.
"Foreign enemies have been creating problems for Afghanistan over the past 30 years and terrorists come from across the border," Ludin noted without elaboration.
Kandahar and surrounding mountainous provinces of Afghanistan along the border with Pakistan has been the scene of increasing insurgency over the three months in which more than 150 people including militants, civilians, Afghan and US troops have been killed.