35 Afghan policemen killed in Taliban attack in Badakhshan
Meanwhile, unknown number of Afghan troops killed in friendly US air strike in Helmand.
Meanwhile, unknown number of Afghan troops have been killed in a friendly US air strike in Helmand province.
The US military expressed condolences to the families of those killed in the incident without giving number of the casualties.
Afghan forces, backed by US air strikes, have been fighting Taliban militants in the area.