A suicide bomb blast hit centre of the capital of Chechnya on Wednesday and was believed to have caused at least one death, Itar-Tass reported.
At least four policemen were wounded when the bomber set off explosives after approaching one of their vehicles near a major concert hall in the Chechen capital Grozny, witnesses told Reuters.
Itar-Tass, citing a local law enforcement source, said 10 people had been wounded by the blast, which is the first suicide bomb in Grozny in almost a year.
It was not immediately clear whether the reported death referred to the bomber. Officials were not immediately available for comment.
One of the most populous regions in the mainly Muslim north Caucasus, Chechnya declared independency after the collapse of the Soviet Union in 1991 but was attacked by Russian forces in two wars since the mid-1990s.
Still low-level insurgency continues in Muslim states controlled by Russia.
ReutersGüncelleme Tarihi: 01 Temmuz 2010, 00:34