The Communist revolutionary's death was announced on Cuban state television in the early hours of Saturday.
While his supporters worship him as a hero, critics accuse the former Cuban President as a dictator.
[Also Read: Fidel Castro- 1926-2016]
On the micro-blogging site, Twitter, the news of Castro's death got mixed reactions.
However, most mourned the death of the iconic figure from the communist era, that is almost over now.
Here we bring you few tweets: