The main task, he said, is to increase anti-aircraft defence capacity and ensure fuel supplies, particularly to Crimea. Read more at straitstimes.com. Read more at straitstimes.com.

Putin said the main task now was to increase Russian anti-aircraft defence capacity and to ensure fuel supplies.

KYIV, June 28 - Ukraine hit two Russian oil refineries in the regions of Krasnodar and Yaroslavl overnight, President Volodymyr Zelenskiy said on Sunday, as Kyiv ramps up pressure on Russia's fuel supply with its drone fleet. Read more at straitstimes.com. Read more at straitstimes.com.

Russian President Vladimir Putin said Ukrainian drone strikes on Russian territory and energy facilities had created problems, including fuel shortages, but insisted the situation was not critical.

Ukraine said its overnight drone strikes hit two oil refineries deep inside Russia. The attacks worsened fuel shortages and forced Moscow to raise output, imports and protection.

MOSCOW, June 28 - Ukrainian drones struck Russian targets including an oil refinery in the southern Krasnodar region overnight, local authorities said, as Kyiv continues energy infrastructure attacks that have caused acute fuel shortages in parts of Russia. Read more at straitstimes.com. Read more at straitstimes.com.

June 28 - President Vladimir Putin said on Sunday that Russia will press ahead with its battlefield aim of fully capturing four Ukrainian regions, rejecting what he said was a new proposal by Ukraine to rein in hostilities in the more than four-year-old war. Read more at straitstimes.com. Read more at straitstimes.com.

He also said Russia needed to boost its air defence capacity to counter intensified Ukrainian drone attacks. Read more at straitstimes.com. Read more at straitstimes.com.

Russian strikes overnight killed two people and injured more than 20 in Ukraine, Ukrainian authorities have said.