Russia marks with ceremonies the 10th anniversary of the K-141 "Kursk" explosion in the Barents Sea.
Prime Minister Boris Johnson announces that the UK's nuclear weapon arsenal will increase from 180 to 260 warheads, and that the UK will shift its foreign policy focus to the Indo-Pacific region, while remaining committed to NATO. The government's review also identifies Russia as the "most acute threat" to British security.
The Russian-flagged fishing trawler "Onega" capsizes near the Novaya Zemlya archipelago in the Barents Sea. 17 fishermen are missing and presumed dead, while two have been rescued. Search and rescue operations in the area have been suspended due to strong winds and low temperatures.