This was stated by NATO Secretary General Anders Fogh Rasmussen in an interview with U.S. broadcaster CNN, devoted to developments in Ukraine.

"Now we rethink our relationship with Russia, - he said - We have decided to suspend the practical cooperation with Russia. When the foreign ministers of NATO Member States meet on 1 and 2 April, they will review all of our relations with Russia."

"We were planning a joint mission to ensure maritime safety of an American vessel, which would neutralise Syria’s chemical weapons, - he recalled.  We will escort it, but Russia will not participate in the mission. This is one of the examples of termination of cooperation."