Obama: 'World cannot stay silent to such barbarism'

President Obama said he discussed the "appalling violence being inflicted on the Syrian people by the Assad regime including the horrific chemical weapons attacks" with the Swedish Prime Minister during a one-day visit to the Scandinavian country.

He said: "I discussed our assessment which clearly implicates the Syrian Government in this outrage.

"The Prime Minister and I are in agreement that in the face of such barbarism the international community cannot be silent and that failing to respond to this attack would only increase the risk of more attacks and the possibility that other countries would use these weapons as well."