Kandahar provincial government spokesman Javed Faisal said the attack started when a suicide bomber detonated a car at the gate of a base in Zharay district, followed by eight attackers wearing suicide vests engaging in a gunfight with troops, Stars and Stripes reported.
The NATO-led International Security Assistance Force said in a statement reports indicated "moderate damage" to the facility's outer perimeter.
The ISAF statement said the base had been secured.
A Taliban spokesman claimed responsibility for the attack in a Taliban stronghold and said the militants inflicted heavy casualties.
Notable deaths of 2014 [PHOTOS]