NATO will suspend cooperation with Russia on the maintenance of Afghan helicopters and a joint anti-drug operation, a source in the alliance told RIA Novosti.

Foreign chiefs of NATO's 28 member states earlier froze "practical civilian and military cooperation" with Moscow but vowed to keep intact the NATO-Russia Council and diplomatic contacts at the ambassadorial level and above.

They also said Tuesday the Western military bloc would consider reviving ties with Moscow during the next Brussels meeting in June.

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