ROUGH CUT (NO REPORTER NARRATION)<br/> <br />Iran and six world powers have not reached any deal yet that would end Tehran's decade-long standoff with the West over its nuclear program, U.S. Secretary of State John Kerry said on Friday.<br/> <br />"I want to emphasize there are still some very important issues on the table that are unresolved. It is important for those to be properly, thoroughly addressed. I want to emphasize there is not an agreement at this point in time," Kerry told reporters shortly after arriving in Geneva.<br/> <br />Kerry plans to meet with Iran Foreign Minister Javad Zarif to narrow differences.