Washington accuses Tehran of violating 2015 agreement by launching satellite last month, supplying arms to proxy forces in Lebanon, Yemen, other countries
Ambassador says no reason to reimpose ban on weapons sales after October expiration, calls US idea to reenter nuke deal in order to trigger new sanctions 'ridiculous'
US, which has pulled out of JCPOA, is campaigning for extension; Tehran accuses it of 'circumventing' UN Security Council resolution, asks EU for support
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