The sudden immigration to Israel of Russian billionaire Roman Abramovich makes him the latest in a string of Jewish Russian oligarchs who have made a home in the country in recent years.

Abramovich received his Israeli citizenship Monday upon arriving in Israel on his private jet, immediately becoming the country's richest person, with an estimated net worth of more than $11 billion. Israel grants automatic citizenship to anyone of Jewish descent.

The Chelsea football club owner made the move after his British visa was not renewed, apparently as part of British authorities' efforts to crack down on associates of Russian President Vladimir Putin.