Syrian government forces are carrying out a campaign of bombing across the north of the country, while fighting in the capital Damascus is described as intense.
Diplomatic efforts are also continuing. But in Syria's biggest city of Aleppo now, civilians there have been caught up in the shelling.
An exclusive Al Jazeera video shows injured civilians and rebels unable to seek medical help following the closure of the Aleppo hospital due to the shelling.
Al Jazeera's Caroline Malone reports.