A single terrorist group may be behind the...
"I do not rule out that this is one and the same group," Putin said at a government session.
The premier ordered that the relatives of those killed and injured in the Kizlyar blasts receive the same financial aid as relatives of victims of the Moscow bombings.
Putin also ordered Interior Minister Rashid Nurgaliyev to strengthen police units in the North Caucasus. Nurgaliyev vowed to increase security in areas of strategic importance and crowded public places in Dagestan earlier on Wednesday.
The president of Dagestan, Magomedsalam Magomedov, said the terrorist attacks in Moscow and Kizlyar are "links in the same chain."
As many as 12 people were killed and 29 injured in twin blasts in the town of Kizlyar in Russia"s North Caucasus republic of Dagestan on Wednesday morning.
The first blast went off at 08:45 Moscow time (04:45 GMT), when a car bomb was detonated outside the buildings of the Interior Ministry, Federal Security Service and a school.