The Russian law enforcement agencies expect to receive materials on the Tsarnaev brothers, who are suspected of having organized the Boston terrorist attack, in the next few days, a source in the Russian law enforcement agencies told Interfax.
"Official documents on Tamerlan Tsarnaev and Dzhokhar Tsarnaev will be received from the U.S. in the next few days," a source in the Russian law enforcement agencies told Interfax.
The source said the Russian authorities currently have no official confirmation that Tamerlan Tsarnaev visited Russia in early 2012, as the foreign media reported.
Likewise, the Dagestan republic's Interior Ministry didn't confirm this.
"Tamerlan Tsarnaev and his brother Dzhokhar have not visited Dagestan in the past few years," the ministry said.
The ministry officials said they had learned about the Tsarnaev brothers from television reports on the Boston terrorist attack.
Dagestan's Interior Ministry also denied the reports alleging connections between the brothers and Northern Caucasus militant leader Doku Umarov.
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