Estonian businessman, investor and programmer, who was one of the founders of the famous Skype service, Teofu Anos, died on Sunday at the age of 48.

According to "Russia Today", the cause of the businessman's death was "an unknown disease."

Anos' success started with creating Skype with his three friends. After that, he actively participated as an investor in many commercial projects.

The family announced that the funeral of the businessman would only be for those close.