Russia's Defence Minister Sergei Shoigu inspected remote Arctic garrisons of the Northern Fleet as a detachment of warships was sent to the Arctic Ocean to perform tasks.
The ministry said on Saturday.
Shoigu inspected the military infrastructure as well as "readiness for actions to protect and defend critical facilities", the ministry said on the Telegram messaging app.
A detachment of warships, including the destroyer Vice-Admiral Kulakov, the landing ship Alexander Otrakovsky and the rescue tug Altai went to the Arctic, the ministry said.
It was not clear when Shoigu visited the fleet. It started military training on Friday aimed at working out actions to protect Russia's sovereignty in the waters of the Northern Sea Route, the fleet said.
As part of combat training, MiG-31 fighter-interceptors performed air defence, air reconnaissance and cover for troops and forces operating in the Arctic zone, the ministry said.
The US and Iran failed to reach an agreement to end their war despite marathon talks that concluded on Sunday in the Pakistani capital Islamabad, jeopardising a fragile ceasefire.
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At least 30 people were killed on Saturday in a stampede at the Laferriere Citadel in the northern countryside of Haiti, authorities said, warning that the death toll could rise.
A cyclone battered New Zealand's North Island on Sunday, cutting power to thousands of residents and forcing hundreds to evacuate, as officials warned conditions would worsen through the day.
Negotiations between the United States and Iran appeared to have concluded for now, Iran's government has announced early on Sunday, after a series of talks in Pakistan to end the six-week war between Washington and Tehran.