TASS reports about this.

According to Voronkov, such cooperation still works very effectively in some parts of the world, but in others it has weakened. 

“The task of the international community is to develop collective solutions on this issue... and without international cooperation it will be impossible to defeat this evil,” said the UN Deputy Secretary General.

Earlier, John Kirby, coordinator for strategic communications at the White House National Security Council, said that the United States would not help Russia in the security sector in connection with the terrorist attack.