Family of Briton missing in Ukraine ‘very worried’; German foreign minister pledges more weapons – as it happened

Missing British men named as volunteers Andrew Bagshaw and Christopher Parry; Annalena Baerbock makes surprise visit to Kharkiv. This live blog is now closed

• Russia-Ukraine war at a glance

The Russian energy ministry says it is working on additional measures to limit discounts to international benchmarks on Russian oil prices, Reuters reports. The move comes after the west imposed price caps.

Last month Vladimir Putin signed a decree that banned the supply of crude oil and oil products from 1 February for five months to nations that abide by the cap.