Putin vows punishment for all attackers

Russian President Vladimir Putin has said that all those responsible for the deadly attack on a concert near Moscow will be punished.

Putin, addressing the nation on Saturday, said that attackers had sought to escape towards Ukraine. 

He said preliminary information showed that some people on the Ukrainian side had prepared to let them cross the border from Russia.

Four men who attacked a concert near Moscow were heading towards Ukraine when they were detained, and that they hoped to cross the border, he said.

“They tried to hide and moved towards Ukraine, where, according to preliminary data, a window was prepared for them from the Ukrainian side to cross the state border,” Putin said.

Putin cast the enemy as international terrorism and said that he was ready to work with any state which wanted to defeat it.