KABUL, Aug. 1 (Xinhua) -- The UN Assistance Mission in Afghanistan (UNAMA) has called on Taliban to undertake a full investigation and provide answers concerning a recent attack on the UN's compound in western Afghanistan, the mission said on Sunday.
On Friday, armed militants attacked a main UN compound during heavy battles in Herat city, capital of western Herat province, killing one security guard and injuring several others.
The mission wrote on Twitter that perpetrators for "the attack that killed an Afghan guard needs to be held accountable."
The city has been the scene of heavy fighting since early Thursday after Taliban launched a massive attack and tried to overrun the Afghan city.
On Sunday, battles in the city resumed and entered its fourth day after reinforcement joined Afghan security forces and local Public Uprising Forces to prevent Taliban from advancing.
