Ukraine relies on Starlink, operated by Musk's SpaceX, to carry out crucial missions against Russian forces.
"To the best of our knowledge, no Starlinks have been sold directly or indirectly to Russia," Musk said.
Reports published last week had said that Russian soldiers operating in Ukraine were using Starlink for operations against Kyiv. SpaceX said it did not operate in Russia or work with Russian authorities.
On Sunday, Ukraine's military intelligence agency said it had evidence that Russia was using Starlink to access the internet in Moscow-held areas of the country.
"There have been recorded cases of the use of these devices by the Russian occupiers," Andriy Yusov, a spokesperson for Kyiv's GUR, told Ukrainian outlet RBC in an article published on Saturday. "This is starting to take on a systemic nature," Yusov told the outlet.
Moscow's 83rd Assault Brigade
"Starlink is not active in Russia, meaning service will not work in that country," the company said in a statement. "SpaceX has never sold or marketed Starlink in Russia, nor has it shipped equipment to locations in Russia. If Russian stores are claiming to sell Starlink for service in that country, they are scamming their customers."
Russian hands via intermediaries in the Middle East, saying Starlink "does not operate in Dubai."
Earlier this month, Defense One reported that Russia was using a number of Starlink terminals across the frontlines, citing an unnamed Ukrainian source. "When they have hundreds, it'll be hard for us to live," the source told the publication.