New York (CNN Business) Jack Sweeney, a Florida teen who tracks Elon Musk's private jet online has a new aviation-themed target: Russian oligarchs and billionaires.

The 19-year-old, who rejected Musk's $5,000 offer to delete his Twitter account, recently launched two new automated Twitter handles — @RUOligarchJets and @Putinjet — following Russia's invasion of Ukraine. The two profiles have amassed nearly 300,000 followers combined and provide nearly live updates of the private jets' movements along with pictures of maps locating them.

Russia's oligarchs face economic chaos at home and punishment by the West after President Vladimir Putin ordered his troops into Ukraine. The United States and its allies have responded by sanctioning wealthy individuals who are close to the Kremlin.

Some of the jets tracked by the accounts include Chelsea Football Club owner Roman Abramovich, businessman Alisher Usmanov and Leonid Mikhelson, the billionaire chairman of Russian gas producer Novatek.

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