VIENNA/ISTANBUL - Iran faces international pressure in two separate meetings over its nuclear program on Wednesday, but with the Islamic state focused more on a June presidential election no breakthrough is expected in the dispute.
In Vienna, the UN nuclear agency will once again urge Iran to stop stonewalling its investigation into suspected atomic bomb research by Tehran, which denies any intent to make such weapons. The talks are due to start around 10 a.m. (0800 GMT).
Later over dinner in Istanbul, the European Union's top diplomat will meet Iran's chief nuclear negotiator - also now a presidential candidate - to discuss a broader diplomatic bid to resolve a row that could trigger a new war in the Middle East.
The two sets of talks represent distinct diplomatic tracks but are linked because both center on suspicions that Iran may be seeking to develop the capability to assemble nuclear weapons behind the facade of a declared civilian atomic energy program.