Surplus 50% means co-operation ‘already under way’ with other countries and standing offer to US; SBU hits oil station 1,500km inside Russia. What we know on day 1,527

Ukraine is making a surplus of up to 50% in some types of weapons and military cooperation “is already under way” with countries in the Middle East, the Gulf, Europe and the Caucasus, Volodymyr Zelenskyy said on Tuesday. Deals involve the production and supply of drones and missiles as well as software and technology, said Zelenskyy, adding that Kyiv has handed a proposal to the US for cooperation on drones, defence systems and other types of weapons for use in the air, on land and at sea.

Another oil facility deep inside Russia – at Perm, 1,500km (900 miles) from Ukraine – was on fire Wednesday after what Ukraine’s president said was his country’s latest long-range drone attack. Nasa’s satellite fire monitoring system showed a hotspot over an array of tanks and a large surrounding area near Perm. Ukraine’s SBU security service said it struck the Transneft pumping station as part of efforts to target Russia’s revenue-earning energy infrastructure. Plumes of black smoke towered over the southern Russian oil town of Tuapse on Wednesday and residents wore face masks after multiple Ukrainian drone strikes on a major oil refinery in the coastal town.