US President Donald Trump is said to have offered to help find solutions to the Ukraine war in a 90 minute long phone call with Russian leader Vladimir Putin.Kremlin foreign affairs adviser Yuri Ushakov said Trump made the offer during the 'business–like and quite constructive' call yesterday in the context of his participation next week at the NATO summit in Turkey.However, Ushakov accused Kyiv and its European allies of 'counting on extending and even escalating the conflict, and on terrorism against civilians', following a 'massive' drone attack on a Russian oil terminal in St Petersburg on Friday night.Ukrainian President Volodymyr Zelensky – who said he also spoke with the US President over the weekend – described the port as an 'important military target' which 'generates revenue for Russia's war' on Kyiv.Almost daily long–range attacks on Russian oil facilities have created a fuel crisis and heaped political pressure on the Kremlin as its invasion stretches into its fifth year. In a separate attack last night in Russian–occupied Crimea, one person was killed in a Ukrainian attack with two others injured, one of those in a serious condition, according to the Russia–installed regional Governor Sergei Aksyonov. Russia has previously said any resolution to ending the conflict must include Moscow assuming full control over Ukraine's Donbas region. Ukraine rejects that assertion and Zelensky urged Putin last month to hold a one–on–one meeting with him, but the Kremlin leader refused.In his phone call with Trump on US Independence Day, Ushakov said: 'The American president once again confirmed his readiness to work towards a rapid end to the fighting and find solutions to overcome the crisis.' US President Donald Trump is said to have offered to help find a solution to the Ukraine war in a 90 minute long phone call with Russian leader Vladimir Putin Kremlin aide Yuri Ushakov (pictured left) said Trump made the offer to help solve the end of the Ukraine war during a 'business–like and quite constructive' call yesterday with Putin Russia accused Ukraine of 'terrorism' following a 'massive' drone attack on a Russian oil terminal in St Petersburg on Friday night The Kremlin adviser said Putin once again emphasised Russia's 'preference for a diplomatic settlement of the conflict, provided that Russia's well–known, fundamental positions are taken into account.' He added that Putin 'depicted the real situation on the battlefield where the Russian armed forces are confidently advancing, liberating one locality after another.' The Russian leader specifically mentioned that Moscow's troops had captured the strategically important city of Kostiantynivka in eastern Ukraine's Donetsk region - however, Zelensky and Ukraine's General Staff dismissed that claim yesterday, saying Kyiv's forces still controlled the city.Ushakov then quoted Trump as saying that Washington's envoys, Steve Witkoff and Jared Kushner, would keep trying to broker a settlement and were prepared to make another visit to Moscow. US diplomatic efforts have virtually stalled as Washington is focused on the war with Iran and Ushakov said Putin also reminded Trump that he had an open invitation to visit Moscow.He added Putin expressed hope during the conversation that US diplomatic efforts in the Iran conflict would 'allow for mutually acceptable long–term solutions to be found on key issues of a settlement.'Putin is then also said to have congratulated Trump and the American people on the 250th anniversary of America's independence during the call, their fourth conversation so far this year. Zelensky, writing on his Telegram account, described his conversation with the U.S. president as 'very good,' including a discussion on the war's 1,200–km (746–mile) front line.'There is a real prospect to end this war and American resolve will have a crucial meaning,' he said, adding that he and Trump agreed to continue discussions at the NATO meeting.The Ukrainian strike this weekend on the oil terminal caused no casualties and Russian air defences had shot down 72 Ukrainian drones across Russia's second–largest city and the surrounding region.Aleksandr Beglov, the governor of St Petersburg, confirmed the attack and Zelensky said there were also successful strikes on Kronstadt, 'an important military target'. St. Petersburg's Kirovsky district was previously hit in June, ahead of Russia's flagship St. Petersburg International Economic Forum.The Crimean peninsula, which Russia annexed in 2014, has suffered particularly from heavy strikes as Kyiv's military seeks to isolate the vital Russian–held peninsula in the latest stage of the war, which has caused local authorities to suspend gasoline sales to civilians.The peninsula was seized by force and illegally annexed by Moscow in 2014. Ukraine has said the targeting of Russia's energy industry are legitimate military targets as the Kremlin heavily relies on oil exports to fund its invasion.Vladimir Putin has shrugged off these strikes as 'not critical' and insisted the war will continue until his goals are met.He has described the attacks as an effort by Kyiv to distract attention from its losses on the battlefield, although analysts have said the advance of Russian forces has been stymied in recent months.