Russia-Ukraine war live: three killed by drone attack on airbase deep inside Russia; emergency power shutdowns across Ukraine

Three Russian military personnel killed when drone attacked airbase near Saratov; power cut by Ukraine energy firm in multiple regions

Christo Grozev, from the investigative journalism organisation Bellingcat, describes the announcement by Russia’s defence ministry that a Ukrainian drone attacked a base in Russia’s Saratov region as “mind boggling”.

Here are some of the latest images we have received from Ukraine.