Officials from Iran and Hezbollah helped plan the attack, people familiar with the operation said, but the U.S. and its allies have not found evidence directly linking Tehran.
Prime Minister Mohammed Shia al-Sudani hopes to persuade the world that he can solve Iraq’s problems when he addresses the U.N. General Assembly this week.
Elizabeth Tsurkov, an Israeli researcher, was seized in late March by an Iraqi Shiite group shortly after leaving a Baghdad cafe, Prime Minister Benjamin Netanyahu said.
The United States also announced sanctions on Iran’s intelligence services, seeking to punish foreign governments for detention of Americans by cutting off access to the international financial system.