A third blast hit the general prosecutor's office and caused "deaths," a Russian news agency reported.

The Interfax news agency said a man with an explosive belt on his waist detonated bomb outside the American Embassy and Uzbek security forces surrounded the compound, stopping all traffic. Israel radio said the attack on the Israeli Embassy also was a suicide assault and that one of the dead there was an Uzbek security guard.

The radio said all the Israeli personnel were safe inside the embassy building, while Uzbek security forces conducted searches in the area. The explosion occurred on the pavement at the entrance to the embassy, the radio said.

There is a significant Jewish population in Uzbekistan.

Interfax reported there were deaths in the explosion at the general prosecutor's office, citing an unnamed source at the office.

In Washington, a State Department official confirmed that the department had "received reports of a bombing outside the US Embassy in Tashkent." The official had no information on casualties and said it was not clear if the embassy was the target.

The blasts come as 15 suspects are standing trial for a wave of violence earlier this year that left at least 47 people dead. Those attacks had included Central Asia's first-ever suicide bombings.

The 15 suspects have pleaded guilty to charges of terrorism, murder and religious extremism. They could face the death penalty.

They are the first to stand trial for the attacks that killed 33 alleged militants, 10 police and four bystanders.