The United States and Britain suspended non-lethal aid to northern Syria after Islamist fighters seized Western-backed rebel weapons warehouses, highlighting fears that supplies could end up in the wrong hands and the general chaos engulfing the nation.

The rebel Free Syrian Army fighting President Bashar al-Assad said the U.S. and British moves were rushed and mistaken. “We hope our friends will rethink and wait for a few days when things will be clearer,” FSA spokesman Louay Meqdad said.

The suspension underlines a crisis for the FSA leadership which needs international backing to reinforce its credibility and to stop its fighters joining powerful al Qaeda-backed Islamist militants who now dominate the war with Assad. […]