The US has condemned the bombing of a hospital in Syria's northern city Aleppo, which has killed at least 20 people, including children. The hospital was supported by Paris-based medical charity Doctors Without Borders. About 200 people have been killed in Aleppo in the past seven days as the government forces, backed by Russia, fight to recapture rebel-held areas. The United Nations on Thursday called the renewed fighting in Syria a "catastrophic deterioration." Zlatica Hoke reports.