"The OSCE, however, regrets the withdrawal of any state from the multilateral arms control treaty," TASS quotes the OSCE secretariat's response to a request to comment on Russia's statement on the decision to withdraw from the OON following the United States.

The organization noted that the treaty is part of the OSCE's comprehensive conceptual framework for arms control.

The secretariat also clarified that the organization is considering the issue of withdrawing from the OST as the competence of the states themselves.

Earlier, the UK commented on Russia's decision to withdraw from the Don.