Top Iranian security official signals it may resume nuclear negotiations if the U.S. abandons military options.

Iran has conceded it will limit its nuclear programme and reduce uranium enrichment levels if the United States lifts sanctions.

The top diplomats of Britain, France, and Germany threatened to reimpose sanctions on Iran as an end-of-the-month deadline nears for the country to resume negotiations with the West over its nuclear program and cooperation with the United Nations nuclear watchdog.