The United Nations political chief has charged the Syrian government with serious crimes in its bombing of Aleppo and demanded that perpetrators be brought to justice.
Radio Free Europe/Radio Liberty: UN hears allegations of war crimes by Syria in Aleppo
Syrians evacuate a toddler from a destroyed building following a reported air strike on the rebel-held neighbourhood of al-Kalasa in the northern Syrian city of Aleppo, on April 28, 2016.
