The death toll in Sunday's attack on a military unit in the southern Russian republic of Dagestan has risen to five, a law enforcement source reported.
The source added that 39 were injured.
A Zhiguli car filled with explosives driven by a suicide bomber detonated near the town of Buinaksk early on Sunday.
Earlier the Defense Ministry said three were killed and 26 injured.
MAKHACHKALA, September 5 (RIA Novosti)