At least eight policemen were killed in an insider attack on the Kabul-Kandahar highway close to the Afghanistan's capital of Zabul province.
The incident took place last night after a policeman invited two guests to visit the check post where he was stationed, reports Tolo news.
The three together allegedly opened fire on the police members present and fled in a police Ranger. Meanwhile, police have started investigations into the attack.
No group including the Taliban has claimed responsibility for the incident so far.
The incident comes after the Ministry of Defense on Wednesday raised concerns over the infiltration of the enemy into the ranks of security forces.