For several hours on Sunday, crowds of angry Cubans took to the streets to protest against the Communist government. They also took to social media, where they not only shared their discontent but tried to galvanise supporters.
The demonstrations, the biggest in decades, were a rare show of dissent in a country where unauthorised public gatherings are illegal.
There was no formal organiser of the rallies, and people found out about where they were happening on online networks. The live broadcast on Facebook of a gathering in San Antonio de los Baños, near the capital Havana, was seen as the starting point for protests that spread quickly across the island.
Until the internet was cut off.
