Here is a summary of the situation on the ground, based on statements from the warring sides, Western defence and intelligence sources and international organisations.

The military situation:

- Ukraine says Russian troops have "reduced" the speed of their offensive but continue to pursue their "main objective": taking the capital Kyiv.

- Naval battles rage around the Black Sea port of Odessa, Ukraine says, as well as near Ochakiv and Chornomorsk.

- Ukraine says Russia is still trying to organise a naval landing at Mariupol on the shores of the southern Sea of Azov.

- Russia claims air superiority in Ukraine.

- Ukraine says Russia launched six missile strikes involving up to 30 missiles on Sunday and four air strikes, mostly from Belarusian territory.

- Ukraine says Russia has fired 180 Iskander-type mobile ballistic missiles since the start of the offensive.

- Ukraine says it is holding Kharkiv, 500 kilometres (310 miles) east of Kyiv.

- The Ukrainian army says it has repelled "several" attacks on Kyiv.

- Ukraine says three Russian missiles targeted Kyiv. One was intercepted.

- Local media report overnight explosions in Kyiv and Kharkiv.

- Russia says it is besieging the cities of Kherson and Berdyansk close to Crimea.

- Ukraine confirms Berdyansk is occupied by Russian soldiers.

- Ukraine says 4,300 Russian soldiers have been killed.

- Ukraine's leader urges Russian troops to lay down their arms.

- A brewery in Lviv, western Ukraine, switches production from beer to Molotov cocktails.

The civilian/humanitarian situation:

- Ukraine reports 352 civilian deaths since the start of the invasion, including 14 children.

- The UN puts the civilian toll at 102, including seven children.

- Russia says civilians can leave Kyiv "freely".

- Russia says Ukraine is using civilians as human shields.

- More than 500,000 people have fled the conflict, the UN says.

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