The impact of possible chemical weapons in Syria on aid efforts would be difficult to anticipate, the International Red Cross said at a conference in the Switzerland headquarters.
Officials said it would attempt to continue humanitarian operations in Syria in the event of chemical weapons being used. Syria have denied that it would use chemical weapons. President Peter Maurer told reporters:
Our general assessment is that the conflict is expanding, that the ability to reach populations is not following at the same pace as the expanding conflict.
So we have an increasing gap between needs emerging and abilities to cover those needs, but we, despite all the difficulties, we keep up an important humanitarian activities in Syria.
General Richard Myers has told ITV News that the real threat in Syria is from Islamist groups using chemical weapons - not President Assad.
NATO agrees to deploys Patriot missiles along the Syria/Turkey border but denies claims that it is taking an active role in the conflict.