Russian Foreign Minister Sergey Lavrov and U.S. Secretary of State John Kerry discussed Karabakh conflict during a phone conversation on Monday.

The conversation focused on the efforts of Russia and U.S. as the co-chairs of International Syria Support Group to settle the conflict.

They also exchanged congratulations on the Victory Day and emphasized importance of preserving historic truth about the Second World War, the Russian Foreign Ministry said in a statement.

The officials discussed international matters, including settlement of Karabakh conflict.