If you're just joining us, here's a little recap of the latest events in Ukraine to bring you up to speed.
Russian bridge-building foiled
- UK military intelligence says an entire Russian battalion was wiped out during a thwarted effort to establish a bridge over the Siversky Donets river in the eastern Donbas region
- The governor of the Luhansk region says his forces stopped three Russian efforts to lay down bridges on different days
- Ukraine claims it killed more than 1000 invading troops, but an analyst tells the BBC the true toll is probably much lower
- The Kremlin is yet to comment on the alleged losses
Beyond the Donbas region
- A Russian serviceman accused of killing an unarmed Ukrainian civilian has appeared in court in Kyiv - ahead of the conflict's first trial of a soldier accused of war crimes
- Ukraine says 1.2 million people - including 200,000 children - have been deported from their country against their will since the fighting started - but the BBC's not been able to verify this
- Ukrainians who've ended up in Russia during the conflict have described terrifying interrogations from border guards as they try to leave the country to enter Estonia
In diplomacy
- The defence ministers of Russia and the US have spoken for the first time since Russia began its invasion - with the American side calling for an immediate ceasefire
- The UK has announced new sanctions against the inner circle of Russia's President Putin - including his ex-wife and his alleged girlfriend
- The EU has pledged another €500m (£425m) in military assistance for Ukraine
