Kyiv's mayor declares a day of mourning after the major drone and missile attack on the Ukrainian capital.
Ukraine denies involvement in the case which may have serious implications for its relationship with Germany.
Sarah Rainsford explains how the war in Ukraine has changed the way conflicts are handled.
Bob the Bus was unable to set off on the journey from Devon to Ukraine due to breaking down.
The Russian president acknowledged Ukraine's attacks were "obviously creating problems" but denied the shortages were "critical".
"We can't take up arms to defend Ukraine, but we can take a stand with our friends."
Stefan Sivers, 35, of Aberdeen, is reported to have been fighting against Russian forces in the Kharkiv region.
Why do Russian warships sail in the English Channel and what laws are in place to regulate their passage.
Col Dmytro Kozyura agreed to share state secrets and systematically disclosed classified information, prosecutors say.
Ukraine's Volodmyr Zelensky skips major conference aimed at rebuilding his country after being stripped of a Polish state honour.
Sevastopol's Moscow-installed governor warns there will be no electricity in some areas until the evening.
In the biggest city Sevastopol, one resident told the BBC he had bought a back-up generator but had nothing to power it with.
