NEW : Visit comes after Iran says it needs more time to mull deal over uranium production . Comment: The three-day visit comes after Iran said Friday that it needs more time to decide whether to sign onto a deal that could help end the international showdown over its nuclear activities . Iran says its nuclear program is intended solely for peaceful purposes . Many in the West believe Iran is pursuing nuclear weapons capabilities .
NEW : Visit comes after Iran says it needs more time to mull deal over uranium production . Comment: Iran says its nuclear program is intended solely for peaceful purposes . Many in the West believe Iran is pursuing nuclear weapons capabilities .