An insurgent attack on a road construction workers' camp in Karukh district in the western province of Herat left nine workers dead overnight.
"The Taliban attacked their camp along the Herat-Badghis road while they were asleep last," Abdul Rauf Ahmadi, provincial police spokesman, told AFP.
The workers were employed by a government-owned road construction company, he said.
A provincial governor spokesman confirmed the deaths, blaming "enemies of Afghanistan", a term used to refer to the Taliban.
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"A van hit a roadside bomb in the Marjah district of Helmand killing five civilians and wounding three," Omar Zwak, the Helmand governor's spokesman, told AFP.
They were on their way to Lashkar Gah, the provincial capital, for shopping, he said.
Also in Helmand, an IED (improvised explosive device) killed three women in Musa Qala district yesterday, a police spokesman said.
IEDs are the Taliban's weapon of choice in their battle against the US-backed government and foreign forces, but they often kill and wound civilians.
The increase reversed a decline in 2012 and raised questions about how Afghan troops can protect civilians as US-led NATO soldiers withdraw from the 12-year war.
The UN Assistance Mission in Afghanistan (UNAMA) said 1,319 civilians died and 2,533 were injured as a result of the war from January 1 to June 30, up 23 per cent on the same period in 2012.