The BBC has been given rare access to a surveillance flight on the Polish border with Ukraine and Belarus.

Authorities say the facility - the largest plant in Europe - is safe and radiation levels are normal.

Cities under relentless bombardment. Here's what you need to know after day eight of the war.

As thousands flee the Russian invasion, the conflict stirs dark memories of Europe's past.

But the talks between Russian and Ukrainian negotiators yield only limited concrete progress.

What are some of the possible scenarios that politicians and military planners are examining?

These images show the aftermath of devastating Russian missile attacks on civilian areas across Ukraine.

Residents of the south-eastern city tell the BBC they are being cut off by relentless Russian shelling.

All six-crew members of the Helt have been saved after an explosion near Ukraine's port of Odesa.

Russia seizes power plant in Ukraine as the assault on the country intensifies.

French authorities implement sanctions but the UK faces criticism over delays.

The thousands of foreign students who have fled the conflict are wondering what to do next.

Russian forces advancing on the Ukrainian capital appear to have stalled, US and UK officials say.

The attack near Babyn Yar, where thousands of Jews were murdered, is tragically symbolic, Jewish leaders say.

As the Russian invasion continues, efforts to protect Ukraine's cultural heritage are stepped up.

Russia's president cuts an isolated figure but he relies on an inner circle when he makes key decisions.

How Ukraine's musicians are countering Russian propaganda by documenting the invasion for their followers.

The measures are tougher than anything Vladimir Putin has faced. But more could be coming.

From an app to alert people to sirens, to organising supplies, tech firms are helping the war effort.

Russians are starting to feel the effect of sanctions aimed at punishing the country for invading Ukraine.

What you should know about the reasons given for Russia's full-scale military assault on Ukraine.

Channel TV Rain stops operating after coming under pressure over its coverage of the war in Ukraine.

Zaporizhzhia nuclear plant is hit during shelling in Ukraine.

"You cannot kill Ukrainian soul" says Petro Poroshenko, the former president of Ukraine.

Crowds of volunteers were there to help the new arrivals, with many offering the refugees rooms in their houses.

Ros Atkins looks at how Russian gas and oil connects to war in Ukraine, and EU efforts to cut ties with Russia.