Report: Blast in Uzbek Capital Causes Casualties.

The agency quoted an unnamed source as saying the blast occurred in the Sabidrakhim district in the southwest of the capital. It said the number of casualties was being checked but gave no more details.

The city has been in the grip of two days of violence which has killed more than 40 people.

Authorities blamed radical Islamist groups for a series of explosions Monday which killed 19 people. Twenty-three died Tuesday, when security forces besieged a suspected Islamic militant hideout.

Officials in Tashkent were not immediately able to comment on the latest report.