Moscow claims it has identified drones used in Black Sea Fleet attack – as it happened

Russia blames Ukraine for attack on Saturday; calls grow for Moscow to rejoin grain deal as US accuses Kremlin of weaponising food

• What we know on day 249 of the Russia-Ukraine war

More on the reported Russia-Ukraine exchange of prisoners of war on Saturday: officials in Moscow and Kyiv said both sides had returned about 50 people each.

Ukraine's military intelligence directorate reported the return of 52 detainees, among them soldiers, sailors, border guards, national guard members and doctors.

We remember all those who are held captive in Russia and on occupied territory and will do everything to ensure that each and every one is returned.