Three explosions Friday near the U.S. and Israeli embassies and a prosecutor's office left at least two people dead in Tashkent, the capital of Uzbekistan.
There were no reports of casualties at the U.S. Embassy.
Two Uzbek security guards employed by the Israeli Embassy were killed in the explosion near the compound's entrance, according to Mark Sofer, a senior Israeli Foreign Ministry official. He said he has received unconfirmed reports that an Uzbek police officer also may have been killed in the blast. He said no Israelis were killed or injured in the attack.
"We think chances are extremely high that it was a suicide bomber," said Sofer.
The Uzbek Interior Ministry told the Reuters news agency that nine other people were injured in the violence, most of them at the prosecutor's office.
Soffer said most of the embassy staff members were not in the compound at the time of the explosion and the ambassador was at his residence next door. The Jewish Sabbath begins at sundown Friday night and embassy employees and staff usually begin leaving the compound early in the afternoon, Sofer said.
He said the embassy had received no warnings of possible attacks prior to the series of explosions around the city.
Uzbekistan this week put on trial 15 people who it said were al Qaeda supporters for attempting to topple the government in attacks that killed nearly 50 people in April.
The authoritarian government of Islam Karimov has battled Islamic radicals for more than five years, but such a deadly and sustained eruption of violence was unprecedented in Uzbekistan's 12 years of independence.
Uzbekistan has emerged as an important partner for the United States since the Sept. 11, 2001, attacks on New York and the Pentagon, hosting an U.S. military base that serves as a forward staging post for operations in Afghanistan.
Molly Moore reported from Jerusalem and Fred Barbash reported from Washington.