US President Barack Obama said the responsibility for the brutality taking place in Syria 's Aleppo is the responsibility of Assad regime and its allies, Russia and Iran, and this blood and these "atrocities are on their hands." "Responsibility for this brutality lies in one place alone: with the Assad regime and its allies Russia and Iran. And this blood and these atrocities are on their hands," Obama said at a White House news conference. 
He called for impartial observers to deploy to monitor efforts to evacuate civilians from the city.

Source: QNA