Members of the Afghan border police participate in a military exercise on the outskirts of Herat, Afghanistan, Monday, Sept. 7, 2015. Twelve female and seventy male border police personnel participated in the military exercise near the border with Iran in Herat province. (AP Photo/Hoshang Hashimi)

12 Afghan policemen dead

An Afghan official says a dozen policemen have died in a string of attacks by the Taliban.