Medical evacuations from Aleppo fail to materialize

The Syrian government on Friday opened a new corridor for rebels and civilians who want to leave the besieged eastern neighborhoods of Aleppo, but the U.N. said planned medical evacuations haven't begun as planned because of a lack of security assurances from the warring sides.

The evacuations, part of a Russia-announced pause in fighting, were announced a day earlier with great hopes by U.N. officials.

But the spokesman for the U.N's humanitarian aid agency, Jens Laerke, described an "astronomically difficult situation," although he declined to specify who was responsible for the breakdown in the plans on Friday.

Speaking to reporters in Geneva, Laerke said...