A prisoner exchange is under way between Russia and Ukraine, governments in Moscow and Kyiv have confirmed.

At least two people have been killed and another 17 injured in the biggest Russian drone attack on Ukraine’s second-largest city of Kharkiv, the mayor says.

Just nowRos Atkins on… Ukraine’s Operation ‘Spider Web’BBC Analysis Editor Ros Atkins and the BBC Verify team build up a picture of what happened and how it was done.Just nowBBC Verify

“One day you’re working in Craigavon Area Hospital; the next, you’re boarding a flight to a war zone.”

Russia launched large-scale drone and missile strikes on Ukraine’s capital and other parts of the country early on Friday, local officials said.

Three days on, and Ukraine is still digesting the full implications of Operation Spider’s Web, Sunday’s massive assault on Russia’s strategic aviation.

New satellite images and drone footage show serious damage inflicted on aircraft at several Russian airbases during Ukraine’s surprise drone strike on Sunday.

Vladimir Putin has said he will have to respond to Ukraine’s major drone attack on Russian airbases, US President Donald Trump has warned.

9 mins agoUkraine says it hit Crimea bridge with underwater explosivesKyiv’s security service says it it used more than 1,000kg of TNT to mine the supports of Russia’s Kerch Bridge.9 mins agoEurope

It was an attack of astonishing ingenuity – unprecedented, broad, and 18 months in the making.