Russian President Vladimir Putin said Sunday that Ukraine's drone campaign has led to a fuel shortage across Russia, acknowledging mounting pressure on the country's energy sector while insisting the Kremlin is quickly restoring damaged oil facilities.

In comments to Russian state TV, Putin said Moscow is importing more fuel and accelerating refinery repairs to address what he described as a "temporary deficit" after repeated Ukrainian strikes on key energy infrastructure.

"All damaged facilities are being restored quite quickly, and the issues that arise are not critical," Putin said, according to The Associated Press.

Putin also said Russia will bolster its air defenses to counter Ukraine's expanding use of mid- and long-range drones, which have repeatedly targeted refineries and other oil facilities.

The Russian leader later acknowledged long lines at gas stations during a meeting with government ministers and said officials were weighing a temporary ban on diesel exports to shore up domestic fuel supplies.

Despite the disruptions, Putin sought to project confidence during a speech to the ruling United Russia party congress.

"Yes, we see and realize our problems — we also respond to them," he said.

Putin added: "We will certainly handle all the challenges we are facing today, including terrorist attacks on our territory and our infrastructure."

Ukraine has intensified its campaign against Russia's oil industry in recent weeks, seeking to reduce the Kremlin's energy revenue and increase pressure on Moscow to end the four-year war.

Among the highest-profile attacks was a massive explosion this month at Gazprom's Moscow Refinery.

The Washington-based Institute for the Study of War said Putin appeared to acknowledge the impact of Ukraine's strikes while trying to reassure Russians that the situation remains under control.

"Putin did not explicitly discuss Ukraine's strike campaign against Russia or the wide-scale gasoline shortages experienced across the entire country, but Putin is likely subtly trying to portray himself as cognizant of the economic and social struggles Russia is facing," ISW researchers said in an analysis.

Ukrainian President Volodymyr Zelenskyy said Sunday that Ukrainian forces struck two additional Russian oil refineries in the Krasnodar and Yaroslavl regions.

"Each of our long-range sanctions is a reduction in the resources working for the Russian war machine, and another step towards peace," Zelenskyy said in a post on Telegram, according to a Google translation.

Russia's central bank has forecast economic growth of just 0.5% to 1.5% in 2026, underscoring concerns that continued attacks on the country's energy sector could further slow the economy.

"Of course, the situation where the fuel sector operates below full capacity for several months will probably take something out of this year's GDP results," Russian central bank Deputy Governor Alexey Zabotkin told reporters Monday, according to Reuters.