DUBAI, United Arab Emirates (AP) — Iran displayed three ballistic missiles at an outdoor prayer esplanade in central Tehran on Friday as talks in Vienna aimed at reviving Tehran’s nuclear deal with world powers flounder. Diplomats from countries that remain in the 2015 nuclear deal — Britain, France, Germany, Russia and China — are working with Tehran to revive the accord, which had sought to limit Iran’s nuclear ambitions in exchange for lifting of economic sanctions. American diplomats are present at the nuclear talks in Vienna but they are not in direct talks with Iranians. The accord collapsed in 2018 when then-President Donald Trump unilaterally withdrew the United States from the deal and re-imposed sanctions on Iran. A report by Iranian state television said the missiles on display were the same types as those used to strike U.S. bases in Iraq.