Russia's lost generals
Yakov Rezantsev
Lt Gen Yakov Rezantsev was reportedly killed by a Ukrainian strike on the Chornobaivka airbase near the city of Kherson.
He was promoted to lieutenant general last year, and was commander of the 49th combined army of Russia's southern military district.
He is said to have taken part in Russia's military operation in Syria.
Andrei Mordvichev
Andrei Mordvichev was killed by a strike on the Chornobaivka airbase near Kherson, according to Ukrainian officials.
He was the commander of Russia's 8th combined army of the southern military district.
His death was reported on 18 March.
Oleg Mityaev
Maj Gen Oleg Mityaev reportedly died somewhere near the city of Mariupol, a city in south-east Ukraine which has seen some of the heaviest fighting so far.
The nationalist Azov regiment claims to have killed him.
He was a commander of the Russian army's 150th motorised rifle division, a relatively new unit formed in 2016, and based in the Rostov region close to the Ukrainian border.
Ukraine claims that the unit was created in order to take part in the conflict in separatist-controlled areas of eastern Ukraine, although Russia denies that its military was involved in fighting there.
Andrei Kolesnikov
Maj Gen Andrei Kolesnikov, of the 29th combined army, was killed in fighting on 11 March, according to official Ukrainian sources.
The circumstances of his death were not given.
After Kolesnikov became the third Russian general reportedly killed in Ukraine, one western official told the Press Association that the Russian army may be suffering from low morale, which is why high-ranking military officers are moving closer to the front line.
Vitaly Gerasimov
Maj Gen Vitaly Gerasimov, chief of staff of Russia's 41st combined army, was killed on 7 March outside the eastern city of Kharkiv, according to Ukraine's defence ministry.
Kharkiv, close to the Russian border, has come under sustained attack from Russian forces.
Ukraine's military released a recording of what it said was two Russian security service officials discussing Gerasimov's death, and complaining that their secure communication networks no longer worked in Ukraine.
Gerasimov was involved in the second Chechen war, the Russian military operation in Syria, and in the Russian annexation of Crimea in 2014.
Andrey Sukhovetsky
Maj Gen Andrey Sukhovetsky, a deputy commander at the same unit as Gerasimov, was reportedly killed by a sniper on 3 March.
Like Gerasimov, Sukhovetsky was part of Russia's military operations in Crimea and in Syria.
Unlike the other generals, Sukhovetsky's death was reported in the Russian media and Russian President Vladimir Putin confirmed in a speech that a general had died in Ukraine.
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