Some 200 people staged a demonstration in Afghan capital Kabul on Sunday to register their protest over the alleged killing of civilians by NATO-led troops in the militancy-ridden country. Carrying banners and placards inscribed with slogans 'Death to aggressors', 'Freedom, Democracy and Social Justice', the demonstrators urged the government to ensure the safety of its citizens. The demonstration took place in the wake of reported killing of 52 civilians by NATO-led troops in Sangin district of the southern Helmand province last week. However, NATO-led multinational peacekeeping troops in a statement have rejected the allegation, saying it has found no evidence to prove the claim. The demonstrators later dispersed peacefully. 