The Karymsky volcano on the far-eastern Kamchatka Peninsula has emitted an ash plume reaching 3,000 meters high, and the cloud has drifted over 40 kilometers from the volcano, Russia's Emergency Situations Ministry said Tuesday.

The volcano has been assigned a "yellow" aviation code for "signs of elevated unrest," the ministry said in a statement.

Fortunately the ash plume has passed over uninhabited areas and away from major aviation routes, the ministry said, adding that travel agencies should avoid scheduling tours close to volcanoes.