Russian forces say they have briefly suspended military action in the northern Syrian city of Aleppo to allow in desperately needed humanitarian aid. Lt Gen Sergei Rudskoy said Russia supported the UN’s proposal to organize joint supervision of the delivery of humanitarian aid to Aleppo via the Castello road and its military experts were working on this with UN and us representatives. But UN officials say that is too short to take in enough to help the large numbers of people in need. Un emergency relief co-ordinator Stephen O’brien said that while the three-hour cessation would be taken seriously, a 48-hour break was needed to get enough aid in on trucks. It is not clear if Syrian rebel groups will also cease fire during the daily three-hour window. Intense fighting has been continuing in Aleppo between rebels and Russian-backed Syrian government forces. Meanwhile, the Syrian observatory for human rights said Russian air strikes on the Islamic state group bastion of Raqa in northern Syria killed at least 30 people and injured 70 others. There are also reports of a toxic gas attack on a rebel-held area. Medical staff said four people died and many others were injured. Earlier some of the last doctors in the rebel-held east of the city appealed to us president barack obama to come to the aid of the 250,000 civilians there.