Even With Everything We Still Have To Update You: Obama: US cannot ignore Syria chemical weapons

President Barack Obama has said the US cannot "turn a blind eye" to the use of chemical weapons in Syria.

He was speaking after returning to the US from a G20 summit in Russia, which failed to produce international agreement on military action in Syria.

The US accuses President Bashar al-Assad's forces of killing 1,429 people in a poison gas attack on 21 August.

EU foreign ministers say there should be no action before the UN reports back on chemical weapons attacks in Syria.

Mr Obama faces a tough week of trying to persuade Congress to authorise military action.

He will also seek public support in a White House address on Tuesday.