"We have a moral interest to try and stop this unfolding catastrophe," he said.
"The threat of many more (refugees) coming if the violence continues and Syria absolutely implodes is real."
Kerry also said he feared the consequences of Russia's air strikes in Syria.
"Our fear (is that)... Russia is simply there to prop up (President Bashar al-) Assad," he said, warning that Moscow's air campaign might "attract more jihadists to the fight".
If Moscow is willing to "help us find a political solution as well as... fight Daesh, then there is a possibility to try to find a way to another path", he said, using an Arabic acronym for the Islamic State extremist group.
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"The threat of many more (refugees) coming if the violence continues and Syria absolutely implodes is real."
Kerry also said he feared the consequences of Russia's air strikes in Syria.
"Our fear (is that)... Russia is simply there to prop up (President Bashar al-) Assad," he said, warning that Moscow's air campaign might "attract more jihadists to the fight".
If Moscow is willing to "help us find a political solution as well as... fight Daesh, then there is a possibility to try to find a way to another path", he said, using an Arabic acronym for the Islamic State extremist group.
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