At least 50 people have been killed in a Syrian government air strike on a hospital in the city of Aleppo as the United Nations warned that a delicate ceasefire was crumbling, according to local sources. 

The attack on the Al Quds hospital on Wednesday killed several medical staff and other civilians, including Dr Wasem Maaz, one of the last remaining pediatricians in the rebel-held part of the city.

Rescue workers were pulling bodies and survivors from the rubble of the building in the Sukkary neighbourhood into the evening and witnesses told Al Jazeera the number of dead was likely to rise.

http://www.aljazeera.com/news/2016/04/deadly-air-strike-hits-hospital-syria-aleppo-160427210232286.html