Monday's car bombs came after a week of attacks on both Sunni and Shiite targets that killed more than 200 – and only days after Iraq's 'most democratic' elections.
UN Secretary-General Ban Ki-moon will travel to Tehran next week to attend the summit of the Nonaligned Movement, a decision that is drawing criticism from the US and Israel.
In the buildup to next week's Iran nuclear talks in Moscow, Tehran has demanded that Western powers formally acknowledge its right to enrich uranium.
Eleven protesters in the British embassy attack were released last night. Britain is rallying Europe to clamp down hard on Iran.
The latest sanctions against the Iran nuclear program target its oil and petrochemical industries. The US and France are also threatening more devastating measures against Iran's banks.
Iran has embraced a Russian proposal to restart nuclear negotiations with the international community, but President Mahmoud Ahmadinejad's political rivals may try to block the talks.
US hiker Sarah Shourd, one of three American hikers detained in Iran for more than a year on espionage charges, will be released as soon as $500,000 bail is deposited, a top Iran prosecutor said Sunday.
Iran's Bushehr plant will be ready to start producing nuclear power in early September after engineers began loading fuel rods into a reactor at the Russian-built factory on Saturday.
Iran and Russia both lashed out against new EU sanctions imposed on Monday. Despite the row, Tehran officials on Tuesday told the International Atomic Energy Agency that it will resume six-party Iran nuclear talks in September.