Hours after Twitter accepted Musk’s hostile takeover offer to purchase the company for $44 billion, Fisker told his followers they should look to Instagram for future updates. Not long after that, his account was deactivated.

Fisker didn’t mention Musk’s takeover before his departure from the platform, nor did he address the move on his Instagram account, but he has been particularly active on that platform, with three posts in the past 24 hours.

Musk and Fisker have been on-again, off-again rivals for years. In 2008, Tesla sued Fisker, who was previously known for his work on exotic sports cars, saying he and another individual stole Tesla’s design ideas and other trade secrets. (Fisker claimed victory in that suit after it went to arbitration.)

Last year, that rivalry was resurrected when Fisker’s company announced plans to roll out an electric vehicle by 2023 in a deal with Foxconn. The Fisker Ocean SUV, the company’s first car, is due to begin production in the fourth quarter of 2022. That vehicle will also be the first all-electric papal transport vehicle (or Popemobile, if you prefer).