At least two people were killed May 1 when a suicide bomber detonated himself in a market in Makhachkala, the capital of Dagestan, CNN and Interfax reported.

A Russian civilian plane was threatened when it flew over rocket fire in Syria on April 29, the Russian Transportation Ministry said, AP reported.

The Jamestown Foundation on April 26 flatly rejected an April 24 report by Russian newspaper Izvestia that suggested the foundation had connections to alleged Boston Marathon bomber Tamerlan Tsarnaev.

Georgian authorities are holding talks with Moscow about easing visa regulations for Georgian businessmen, Georgian Agriculture Minister David Kirvalidze said April 22, RIA Novosti reported April 23.

A 6.1-magnitude earthquake hit the Kuril Islands at 1:15 p.m. GMT on April 20, the U.S. Geological Survey said, Xinhua reported.

Russian President Vladimir Putin and U.S. President Barack Obama agreed to increase cooperation on counterterrorism April 20, Reuters reported, citing a White House statement.