MOSCOW, June 5 (Reuters) - Russia's Pacific Fleet forces have started operational exercises in the waters of the Sea of Japan and the Sea of Okhotsk that will last until June 20, Russia's Defence Ministry said on Monday.

"More than 60 warships and support vessels, about 35 naval aviation aircraft, coastal troops and more than 11,000 military personnel are involved in the exercise of the Pacific Fleet forces grouping," the ministry said on the Telegram messaging app.