UNITED NATIONS (AP) - The U-N Security Council has voted unanimously to impose moderately tougher sanctions against Iran for its refusal to stop enriching uranium.
The sanctions are intended to show Tehran that defiance will leave it increasingly isolated.
The steps include banning Iranian arms exports and freezing the assets of 28 people and organizations involved in Iran's nuclear and missile programs.
About a-third of those are linked to the Revolutionary Guard, an elite military corps.
In December, the Security Council ordered all countries to stop supplying Iran with materials and technology that could contribute to its nuclear and missile programs.
It also ordered the assets frozen of ten key Iranian companies and 12 individuals related to those programs.
Iran has vowed the sanctions will only motivate it further to pursue nuclear power.