U.S. puts sanctions on Iranian foreign minister Zarif, who says they won't affect him

The United States on Wednesday imposed sanctions on Iranian Foreign Minister Mohammad Javad Zarif, targeting the country's top spokesman and potentially hurting chances of diplomatic talks amid rising tensions between the two countries.Zarif, a critical figure in the 2015 Iran nuclear deal, dismissed the action and said it would not affect him.U.S. President Donald Trump pulled the United States out of the deal last year and ramped up sanctions to put pressure on Iran's economy.