The lukewarm reception from the Iranian delegation got the negotiations on the nuclear issue in Baghdad off to a slow start.
The Baghdad talks, scheduled since a round in Istanbul in April, took on new momentum after International Atomic Energy Agency Director General Yukiya Amano said Tuesday Iranian officials signaled a willingness to accede to the agency's longstanding request for access to the secret facilities, The New York Times reported.
But Tehran expressed disappointment at what it saw as a one-sided offer that did not adequately dial back the economic sanctions that had been imposed against Iran.
"The response from the Iranian side is: 'What you are asking for is ... not what we agreed to in Istanbul,'" an Iranian diplomat close to the talks told the Christian Science Monitor.
Striking a deal to allow IAEA inspectors into Iranian nuclear sites is seen as a prelude to future talks on the trickier subject of halting Iran's uranium enrichment program. The Monitor said Iran had wanted concessions by both sides to be implemented simultaneously; however, the West told the Iranians the easing of sanctions would be "considered" after Iran agreed to the concessions the West was seeking.