Russian President Vladimir Putin has called for a new level of co-operation with Western intelligence agencies in order to fight terrorism.
"It's in the general interest to establish a dialogue with the special services of the United States and other member countries of Nato," Mr Putin said at a meeting of top officials of the Federal Security Service, news agencies reported.
"We need to establish co-operation at a new level in the anti-terrorist sphere with foreign partners," he said.
Mr Putin at the same time complained that Nato "is constantly provoking us and trying to draw us into confrontation", the reports said.
He claimed that Russia last year thwarted the activity of more than 400 foreign special agents, but did not give details.