KABUL: In the conflict-ridden Afghanistan, 21 armed militants have been killed and an army chopper crashed since Saturday, officials confirmed on Sunday. In the latest violent incident, a chopper of national army was crashed in the eastern Logar province on Sunday, leaving three soldiers dead. “A chopper of national army was crashed near the training center of National Army in Shakar Qala area of Logar province on Sunday afternoon, leaving three soldiers dead and two others injured,” said spokesman for Logar’s provincial government, Salim Sahil.