CAIRO - Enraged by a court ruling that spared the life of deposed president Hosni Mubarak, Egyptians have taken to the streets to demand a new uprising in their country.
"This was not a fair verdict and there is mass rejection of the judge's ruling," protestor Amr Magdy told Reuters.
"Tahrir will fill up again with protesters."
Thousands of protestors took to the streets across Egypt to protest a court verdict that had spared Mubarak's life over the killing of protestors during last year's revolution.
Mubarak was given a life sentence on Saturday for complicity in the killing of more than 850 protestors during last year's revolution that ended his three-decade rule.
State television said Mubarak suffered a "health crisis" after the verdict when he was flown to Cairo's Tora prison, where he was admitted to a hospital facility.
He had been held at a luxurious military-run hospital during the 10-month trial.
Former Interior Minister Habib al-Adli was also given life in prison over the protestors' killings.
Mubarak's sons were found innocent of corruption charges and senior policemen were acquitted for lack of evidence.
But many Egyptians say that the ruling gives proof that Mubarak clan still holds sway in the country.
"In Egypt the only way you can get any justice is by protesting because all the institutions are still controlled by Mubarak figures," said Magdy.
Hundreds of protestors gathered Sunday in Tahrir Square - focal point of last year's uprising against Mubarak, vowing justice for those killed in the uprising.
"Yesterday people were united like in the early days of the revolution," 46-year-old engineer Osama Awad in Tahrir told Reuters.
"I felt the revolution is returning."
Leftist Hamdeen Sabahy, who failed to progress to the election run-off, joined thousands of protesters in Tahrir late on Saturday.
The Muslim Brotherhood's candidate Mohamed Mursi also toured the square.
The tension comes two weeks before Egypt's runoff to choose between Mubarak's last premier Ahmed Shafiq and Muslim Brotherhood's candidate Mohamed Mursi.
Suspicion is widespread that the military, led by Mubarak's old defense minister, will still wield heavy influence after the new president takes office.
The electoral success of Shafiq, a former air force commander, has deepened those fears.
Dozens of young men ransacked Shafiq's campaign office in Fayoum south of Cairo overnight, the second such attack in recent days, state news website al-Ahram reported.
Footage posted on Al-Ahram's website showed youths destroying and burning Shafiq's pictures and banners.
Protestors chanted "Fayoum says Ahmed Shafiq is feloul," an Arabic word used to refer to remnants of the Mubarak era.
Shafiq has taken a tough stance on law and order, appealing to many Egyptians tired of political chaos and insecurity that have damaged the economy and worsened poverty. Critics say he also has the backing of the powerful army.
Awad said Mubarak must be tried again because key evidence had been concealed and Egyptians must unite against Shafiq."When Mursi wins, we can re-try Mubarak and the old regime," Awad said.