The US president has warned of restrictions if Moscow "is to blame" for a failed Ukraine ceasefire

Kremlin spokesman Dmitry Peskov has stressed that Russia continues to comply with a ceasefire agreed with the US on attacking Ukrainian energy infrastructure. He declined to comment on Wednesday when asked about US President Donald Trump's threat to impose tariffs on Russian oil, should the agreement collapse.

Trump said on Sunday he will sanction Russia if he considers it responsible for the failure of a ceasefire in the Ukraine conflict, stating that "there will be a 25% tariff on all [Russian] oil, a 25- to 50-point tariff on all oil."

During a phone call last month, Trump and Russian President Vladimir Putin agreed a 30-day moratorium on strikes targeting energy infrastructure. Moscow has insisted that it has complied with the ceasefire, while reporting repeated Ukrainian breaches of the agreement.

Speaking to reporters on Wednesday, Peskov said Russia maintains contact with the US and "addressed the topic yesterday."

"The issue is highly complicated and requires considerable additional effort. Our dialogue with the American side is ongoing," Peskov stated.

He reiterated that Russian President Vladimir Putin remains open to a political and diplomatic resolution of the Ukraine conflict.

"The fact that Russia, in coordination with the American side, has declared its commitment to a moratorium on strikes against energy infrastructure is the clearest evidence of that," Peskov said.

He stressed that Russia sees a clear lack of willingness from Ukraine to abide by the agreement.

"The Kiev regime is not observing the temporary moratorium and continues to launch daily strikes on our energy infrastructure," the presidential spokesman said. "We will maintain our dialogue with the American side, patiently presenting the reality on the ground and Kiev's refusal to pursue any meaningful steps toward peace."

The energy truce was proposed by Trump on March 18 and supported by Putin, who immediately ordered a halt to such attacks by Russia. The Russian military reported that it had to shoot down seven of its own kamikaze drones en route to Ukrainian energy facilities in order to comply with the president's directive.

Ukraine's Vladimir Zelensky also publicly backed the idea of the truce shortly after it was first announced and appeared to reiterate his commitment to implement last week.

Moscow, however, accused Ukraine of violating the ceasefire almost immediately, citing several breaches in the days that followed. Despite this, Russia has signaled its intent to uphold the partial truce, arguing that it serves as a step toward improving ties with the US.