Forces loyal to Bashar al-Assad, the Syrian president, have been blamed for using warplanes, tanks and mortars to indiscriminately bombard opposition-controlled areas across the country.
The action has left many residential buildings destroyed and thousands of civilians dead.
In an Al Jazeera exclusive, Khadija Magardie reports on how one family, a married couple and their four children, died after their home in Aleppo was shelled as they slept. The couple's newborn child was the only survivor of the attack.
Source: Al Jazeera