Ukraine conflict: Warning of attacks on Kyiv

The Russian defence ministry has warned residents in Kyiv that it is preparing to hit targets in the Ukrainian capital. Ukraine's second city, Kharkiv, has been hit by a strike, causing a huge explosion. Meanwhile, the European parliament has given a standing ovation to Ukraine's president, Volodymyr Zelensky, as he told them by video link that his people would not be broken by Russia's invasion.

We get updates from our correspondents on the ground and hear accounts of people witnessing the fighting. We look at what's happening at Ukraine's borders and speak to people heading to Ukraine as volunteer fighters, many joining up the reserves despite not having military experience.

We also continue to explain the background to the conflict and the key terms regularly mentioned in our coverage.

(Photo: A Ukrainian soldier walks with A Ukrainian national flag in downtown Kiev (Kyiv), Ukraine, 01 March 2022. Credit: ZURAB KURTSIKIDZE/EPA)