Russia-Ukraine war: US pledges ‘unwavering commitment’ to Ukraine; Zelenskiy accuses Russia of delaying grain ships – as it happened

Lloyd Austin and Sergei Shoigu also agree to maintain lines of communication; Ukrainian president says Russia delaying ships' passage

• At a glance: what we know on day 240 of the invasion

Vitaliy Kim, governor of Mykolaiv, has no casualties to report in his daily update, although he has posted to Telegram to say that at 6.50am this morning the coast of the Kutsurub community" was struck.

A series of explosions have also been reported in Ukraine's south-eastern city of Zaporizhzhia.