US Secretary of State John Kerry reaffirmed his country's commitment to the international plan agreed last June in Geneva to end the ongoing crisis in Syria.
Speaking at a joint press conference with Russian Foreign Minister Sergey Lavrov he said the plan proposed by Kofi Annan, the Geneva Communique, must be "the roadmap" for peace.
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"Africa is very important for the United States."
The incident happened at around 8pm local time on Thursday evening.
The Foreign Secretary said "good connections" were important, and suggested the Channel Tunnel might simply be "a first step."