The NATO-led International Security Assistance Force is investigating the deaths of five civilians in southern Afghanistan. The deaths, which occurred after a firefight between troops and insurgents in the Sangin district of Helmand province, have already been blamed on insurgents, with the Isaf making accusations that gunmen used civilian houses to launch attacks. An Isaf statement said insurgents had attacked coalition forces with small arms fire and machine guns from the homes. After the engagement, it said, coalition forces conducted a battle damage assessment and discovered five civilian casualties. Figures released by the UN show the conflict in Afghanistan has led to a total of 2,412 civilian fatalities and 3,803 injuries. Casualties attributed to foreign troops and the Afghan security forces have dropped by 18% this year, according to the report.