NATO forces have shot and killed an Afghan policeman after he opened fire on troops during a training exercise, sparking protests by local residents.
Two Spanish police and an interpreter were killed when the Afghan officer turned his gun on them.
Demonstrators claim that soldiers shot into the crowd causing casualties.
NATO-led military are in a race against time to train up the Afghan army and police to eventually take over the country’s security.
US President Obama has called for a scaled withdrawal of troops from July of next year.
The push to hand security back to Kabul is causing tension on the ground and there have been several recent incidents of “rogue soldiers” turning their weapons on their instructors.
"Rogue" Afghan policeman shot after killing 3