Tunisia has been rocked by protests that have apparently forced longtime president Zine Al Abedine Ben Ali to step down and flee the country. Reports now say that Ben Ali has landed in Jeddah, Saudi Arabia, while the nation's prime minister, Mohammed Ghannouchi, claimed to have taken control of the country.
Supporters of the movement to oust the president celebrated in the capital city of Tunis, shouting, "Victory! This is a historical moment in Tunisia. Proud to be Tunisian."
Watch "World News with Diane Sawyer" for more on this story tonight on ABC.
Rioters took to the streets protesting unemployment and rising food prices. The situation escalated into chaos; news spread quickly on social networking sites like Facebook and Twitter as protesters voiced their anger in the capital and cities across the country.
The Arab world is watching for wider implications; Jordan and parts of North Africa saw similar protests on Friday.
About 50 activists in Egypt gathered outside the Tunisian embassy in Cairo to celebrate, chanting and singing "Ben Ali, tell [Egyptian President Hosni] Mubarak a plane is waiting for him too!" The Associated Press reported. Arabs across the region turned to Twitter and Facebook to celebrate the anti-government protests, and many people changed their profile pictures to the Tunisian flag.
Youssef Gaigi, a blogger and one of the protesters in Tunis, described the scene in the city. He and others were cordially talking to police, "then suddenly, everything changed," he said.
Police clashed with rioters, some of whom climbed the walls of the Interior Ministry, reportedly the site of torture for years.
"They started throwing gas bombs at us. I hear there were shootings downtown and some people were killed, we can't be sure. People spread, they started throwing rocks and things erupted," Gaigi, now safe at a friend's house, said. "We're very, very afraid. We are seeing smoke all over the city."
Complaints of dictatorship, of a lack of freedom have filled the streets and the blogosphere, with Twitter updates flagged #sidibouzid giving a picture of the unrest in the country.
"It's probably too soon to see how large a role social media played, but I think it definitely played an enormous role in grabbing the attention of the rest of the world," said Jillian York of the Berkman Center for Internet & Society at Harvard University.
York, who specializes in free expression, politics, and the Internet, particularly in the Arab world, said, "The Tunisian perception at this point seems to be there was a gap in the global mainstream media, and so Tunisians took to the blogs and Twitter to get information out there to everyone else."
Gaigi said a friend shared a Facebook invitation with him to participate in the protests today, and he called recent events "a Twitter revolution."
"When you hear lots of people talk, you can detect what is [the] opinion of [the] majority, and you can share your thoughts with them ... and coordinate," he said. In some cities in Tunisia, "they even used Twitter to share positions of snipers," he said. "We shared everything."
Posts Friday announced to the world, "Dictator #BenAli flees #Tunisia in total cowardice; a new era of #Revolution has begun #SidiBouzid #Victory" and "I still can't believe what happened! thank you Tunisia for restoring our hope in a better future for Arabs #sidibouzid #tunisia."