Thousands of people took to Tunisia's streets Wednesday to protest the shooting death of Chokri Belaid, a leading opposition figure, amid fears that radicals are threatening to derail the country's democratic transition.
News reports say protesters jammed the main Habib Bourguiba boulevard in downtown Tunis, yelling "shame, shame" as they denounced the killing of leftist politician. The headquarters of the moderate, Islamist Ennahda party, which rules in an uneasy coalition with secularists, was attacked and set ablaze.
Other demonstrations are being staged in towns around Tunisia, in scenes reminiscent of the country's largely peaceful revolution two years ago.
One of the leaders of the opposition Popular Front, Belaid was shot dead outside his Tunis home just hours before. His killing has sparked shock and outrage, and fears that religious extremists are trying to hijack Tunisia's transition to democracy.
Speaking before the European Parliament in Strasbourg, France, Tunisian President Moncef Marzouki said his country has many enemies who want the revolution to fail. He denounced the "odious assassination" of Belaid, who he described as an old friend. He said Tunisia would reject the message sent by what he called the "enemies of the revolution."
An array of politicians have similarly denounced Belaid's death, including the ruling Islamist Ennahda Party. The party chief, Rached Ghannouchi, condemned the murder, saying the killers wanted a "bloodbath" in Tunisia.
Later Wednesday, the Popular Front said it was pulling out of the constituent assembly charged with writing a constitution. A spokesman said the group would also call for a general strike to protest Belaid's murder.
Supporters of the ruling Ennahda party shout slogans in support of the party during a demonstration in Tunis, Feb. 9, 2013.
A tear gas canister flies in the air as thousands of Tunisians gathered at el Jallez cemetery to attend the funeral of slain opposition leader Chokri Belaid, Feb. 8, 2013.
A Tunisian woman walks past burning cars during clashes with the police near the funeral of slain opposition leader Chokri Belaid, Feb. 8, 2013.
Riot police clash with protesters next to the cemetery where thousands of Tunisians gathered to attend the funeral of slain opposition leader Chokri Belaid, near Tunis, Feb. 8, 2013.
Mourners carry the coffin of opposition leader Chokri Belaid during his funeral procession, Tunis, Tunisia, Feb. 8, 2013.
A sticker with an image of the late opposition leader Chokri Belaid is seen as a woman mourns during his funeral procession, Tunis, Feb. 8, 2013.
Mourners carry the coffin of slain opposition leader Chokri Belaid during his funeral procession towards El-Jellaz cemetary, Tunis, Feb. 8, 2013.
Tunisians accompany the ambulance carrying the body of opposition leader Chokri Belaid, from his home to his father's home, Tunis, Feb. 7, 2013.
A woman cries over the coffin of opposition leader Chokri Belaid, in Tunis, Feb. 7, 2013.
Protesters gather on Tunis 'main avenue after a Tunisian opposition leader critical of the Islamist-led government was gunned down as he left home, Feb.6, 2013.
A protester gestures to police during clashes in Tunis, Feb. 6, 2013.
The body of Chokri Belaid, a prominent Tunisian opposition politician, is carried into an ambulance after he was shot, in Tunis Feb. 6, 2013.
Basma Chokri, the wife of assassinated prominent Tunisian opposition politician Chokri Belaid, mourns in Tunis Feb. 6, 2013.
But some critics, including members of his family, are openly accusing Ennahda of being responsible for his death. Belaid himself had strongly criticized Ennahda of failing to rein in extremist members and of threatening the opposition.
Those accusations were echoed Wednesday by one of Belaid friends Moctar Jelali, interviewed by Radio France International.
Jelali said his assassination was part of a larger plot by radicals to sow disorder. He accused the government of inertia.
Considered the birthplace of the larger Arab Spring uprising, Tunisia has managed to avoid the widespread bloodshed that has coursed through other revolts such as Libya and Syria.
But the North African country is grappling with rising violence, political clashes and high unemployment, among other problems.