Evacuations of areas under siege in northern Syria are picking up pace, with people in some rebel-held zones now being allowed to leave. Evacuation of the last rebel enclaves in eastern Aleppo surrounded by Syrian forces restarted late yesterday. <br/><br/>A linked evacuation of government-held parts of Idlib province being besieged by rebels started today. While civilians are being moved to safety in Syria, the UN Security Council is to discuss sending monitors to oversee the mass evacuations. There are hopes that countries divided on Syria's fate will come to a rare agreement on the crisis.<br/><br/>Eastern Aleppo had been held by the rebels since 2012, but Syrian forces squeezed them into ever-smaller corners of the city, along with thousands of civilians, before evacuations started last week. Initial efforts collapsed on Friday, leaving civilians stranded without access to food and shelter and with almost no medical facilities. <br/><br/>However, the operation to move civilians to other rebel-held territory restarted late on yesterday. Turkey's Foreign Minister said, 4,500 civilians had left eastern Aleppo since last night, bringing the number of evacuees to 12,000.<br/>''<br/>