Three Canadian soldiers with the NATO-led security forces in Afghanistan and four Taliban militants were killed in the country's south, while Afghan authorities were investigating the deaths of eight prisoners in country's largest prison, DPA quoted officials as saying. The soldiers, serving under the banner of UN-mandated International Security Assistance Force (ISAF), were killed in a roadside bomb blast in southern province of Kandahar on Friday, the Canadian Defense Ministry said in a statement. ISAF in Kabul confirmed the deaths of the soldiers. Also in Kandahar, two militants trying to plant roadside bombs were killed on Friday when their explosives exploded prematurely, the Afghan Interior Ministry said in a statement. Two other militants were killed and five were wounded in a US-led coalition operation in Zerok district of the south-eastern province of Paktika on Friday, the US military said in a statement. Meanwhile, Afghan officials were investigating the facts surrounding an incident on Friday in Puli Charkhi prison in outskirts of Kabul that resulted in the deaths of eight prisoners and left ten other prisoners and three guards wounded.
