Nicolas Sarkozy pays tribute to French soldiers shot in Afghanistan

French President Nicolas Sarkozy has paid tribute to four soldiers shot dead by an Afghan soldier.

Sixteen more members of the French armed forces were injured in the incident in Kapisa province.

An official told the BBC that an Afghan non-commissioned officer got into a "verbal clash" and opened fire.

President Sarkozy said France was suspending its training programmes in Afghanistan following the attack.