Ban Ki-Moon: Aleppo is 'worse than a slaughterhouse'

Outgoing UN chief Ban Ki-Moon described the situation in Aleppo as becoming "worst than a slaughterhouse". 

Speaking about the escalation in fighting in the Syrian city, he described the actions of the Syrian and Russian air-force as being tantamount to "war crimes". 

According to UNICEF 96 children were killed and 223 injured in the last six days in Aleppo. The agency also said that many were not being treated due to the scarcity of supplies and doctors.