The Organization for Security and Cooperation in Europe (OSCE) says Crimea's planned March 16 referendum on joining Russia is illegal in its current form.
Europe's security and democracy watchdog also says that the organization will not send a mission to observe the poll, RFE/RL reports.
Swiss Foreign Minister Didier Burkhalter, whose country is the current chair of the Vienna-based OSCE, made the announcements in a statement appearing on the organization's website on March 11.
To recall, OSCE observers were not allowed in Crimea. Russian troops stopped them at the Crimean checkpoint three days in a row.