A vast crowd of protestors flooded the streets of Algiers Friday, the first mass demonstrations since the resignation of ailing president Abdelaziz Bouteflika and a show of strength by those pushing demands for reform.
Activists chanted slogans demanding key Bouteflika loyalists follow his lead and quit, after social media calls for "joyful demonstrations" to "peacefully bring down a dictatorial regime".
No official figures were immediately available on the size of the rally, but it was at least as big as those held on previous Fridays leading up to Bouteflika's departure, said AFP journalists at the scene.
Opponents of the old regime have called for a massive turnout, targeting a triumvirate they dub the "3B" -- Senate speaker Abdelakder Bensalah, head of the constitutional council Tayeb Belaiz and Prime Minister Noureddine Bedoui.
The veteran Bouteflika loyalists have been entrusted with overseeing the political transition after the veteran leader finally stepped down at the age of 82.
Bouteflika resigned late on Tuesday after weeks of demonstrations triggered by his bid for a fifth term in office. After two decades in power, he had lost the backing of key supporters including armed forces chief Ahmed Gaid Salah.
Bensalah, speaker of the upper house of parliament for 16 years, is to take the reins as interim president for three months until elections are organised.
Belaiz, a minister for 16 years, was named by Bouteflika as head of the Constitutional Council which will regulate the elections.
Before his appointment as prime minister, Bedoui had served as interior minister -- or, as the French-language El Watan newspaper put it on Thursday, "chief engineer of electoral fraud".
Opponents say all three are tarnished by their long years of service under Bouteflika and should follow his lead and resign.
Even hours before the rally started, several hundred demonstrators had gathered outside the main post office in central Algiers, which has been the epicentre of the protest movement.
Some shouted "we will not forgive!" in reference to an open letter Bouteflika issued after his resignation, apologising to the Algerian people for "mistakes made".
Said Wafi, a bank worker from the nearby city of Boumerdes, had arrived at 5:00 am in hope of being "the first demonstrator against the system".
"Bouteflika leaving means nothing if his men continue to run the country," the 42-year-old said.
Samir Ouzine, 19, a student, agreed.
"Bouteflika was very sick. He wasn't really governing, and nothing will change if he alone leaves and his men stay."
One of the leading voices of the protest movement, lawyer Mustapha Bouchachi, has called for the demonstrations to continue "until they have all gone".
"Our victory is partial," he said in a video posted online.
"Algerians will not accept that symbols of the regime... lead the interim period and organise the next elections."
But protestors expressed hope that the system would see real change.
Zoubir Challal, who like many young unemployed Algerians had considered a dangerous crossing of the Mediterranean to seek a better life in Europe, carried a sign bearing the slogan: "For the first time, I don't want to leave you, my country."
Protesters are calling for new transitional institutions to be set up to implement reforms and organise free elections.
"Sticking with the constitution would probably be met with quite a bit of protest, as protesters may be wary of elections not being fair, competitive and free," said Isabelle Werenfels of the German Institute for International and Security Affairs.
"One option would be to name an independent and broadly accepted head for a transitional body," she said.
Hamza Meddeb, an independent analyst in Tunisia, said Algeria was entering "a very delicate phase, because the street and the institutions are at risk of diverging".
The army's intentions are a key question, according to analysts.
Despite abandoning his patron Bouteflika who named him army chief in 2004, General Gaid Salah is still seen by protesters as a key defender of the "system".
But protestors on Friday chanted: "The army and the people are brothers!"
Said Zeroual, 75, said he hoped Algeria would regain "our freedom and our sovereignty".
"I hope to live long enough to see democracy in my country," he said.