Crimea

Says special units on watercraft landed on shore in the area of the Olenivka and Mayak settlements

Russia seized Crimea in 2014, eight years before launching its full-scale invasion of Ukraine

Soviet-era canal was built to channel water from the River Dnieper to arid areas of Ukraine

US State Secretary says Moscow has stepped up planning for potential military action in the country

NATO, US warn Moscow it would pay a high price for any new military aggression

Says deal with Ukraine shows British military activities are expanding near its borders

The fire broke out when one vessel was transferring fuel to the other, driving both crews to jump overboard

Kiev imposed martial law for 30 days in 10 regions that border Russia, the Black Sea and the Azov Sea

Moscow accuses sailors of crossing illegally into Russian waters and ignoring warnings from its border guards

Officials are treating the incident as a terrorist attack in which many of the victims are teenage pupils

Trump is due to meet his Russian counterpart Vladimir Putin on July 16 in Helsinki

Over the last two weeks, every household in Sweden received a booklet of instructions on how to prepare for war

Sunday also marks exactly four years since Putin signed a treaty declaring Crimea part of Russia

Russia annexed the Crimean peninsula from Ukraine in March 2014

Images on bank note chosen after a national competition last year to pick symbols of Russia

"Crimea is territory belonging to the Russian Federation"

Moscow and Kiev have been locked in a bitter feud since the Kremlin seized Crimea from Ukraine in March 2014

NATO to deploy four battalions in Estonia, Latvia, Lithuania and Poland to counter Russia

Meeting of the NATO-Russia Council will be the first since Russia's annexation of Crimea in 2014