Ukraine hints at more attacks in Russia after oil and gas st Ukraine's intelligence chief told CNN there may be more attacks on Russian soil.
He talked about a hypothetical plan that would hit critical infrastructure and military targets.
Ukraine doesn't claim responsibility for strikes on Russian soil, including on energy infrastructure.
Ukraine's intelligence chief hinted that his country would conduct more attacks on Russian soil following a string of unclaimed attacks that took place on Russia's oil and gas infrastructure.
Kyrylo Budanov, the head of Ukraine's defense intelligence directorate, told CNN that drone attacks on Russian soil were "quite possible."
"Hypothetically, there is a plan according to which all this happens," he said. "And I believe that this plan includes all the major critical infrastructure facilities and military infrastructure facilities of the Russian Federation."
Over the past few weeks, Ukraine appears to have been targeting oil and gas infrastructure in Russia with small, cheap drones that can bypass Russian air defenses, as Business Insider's Alia Shoaib reported.
In the interview with CNN, Budanov refused to take responsibility for drone attacks that have taken place on Russian soil, which is in line with Ukraine's usual response to such events.
Ukraine has largely refused to take responsibility when attacks happen in Russia, although it sometimes hints at its involvement.