Ahmed Khalil Janabi/Al Jazeera
Angry demonstrators gathered in front of the Tunisian Ministry of Interior at the heart of the Tunisian capital, protesting the assassination of Shokri Belaid, leader of the Democratic Patriots party.
Ahmed Khalil Janabi/Al Jazeera
They held Minister of Interior Ali al-Areid responsible for the assassination and called for his immediate resignation, shouting "Leave, leave!"
Ahmed Khalil Janabi/Al Jazeera
A protester holds a sign reading, "Today Shokri, who will it be tomorrow?" outside the Tunisian Ministry of Interior in Tunis.
Ahmed Khalil Janabi/Al Jazeera
The demonstrators accused Rachid Ghannouchi of the Islamist Ennahda party of being involved in the "miserable situation" in their country.
Ahmed Khalil Janabi/Al Jazeera
Omar bin Ali, a member of the Trade Union, was present at the demonstration site and told Al Jazeera that the Islamists are responsible. "This is what they have been calling for in mosques," he said.
Ahmed Khalil Janabi/Al Jazeera
"Tunisia is a friend of all. It is hard to think of anyone from abroad to do this to us," added Omar bin Ali, ruling out the possibility of external factors in the killing.
Ahmed Khalil Janabi/Al Jazeera
Protesters chanted slogans calling for for a "fresh revolution".
Ahmed Khalil Janabi/Al Jazeera
Hamadi Jebali, Tunisia's prime minister, has said that he will dissolve the Islamist-led government and form a national unity administration on Wednesday.
Ahmed Khalil Janabi/Al Jazeera
Violent clashes between Belaid's supporters and police along the main Habib Borguiba Avenue were reported.
Ahmed Khalil Janabi/Al Jazeera
Anti-government protesters clashed with police, who retaliated with tear gas.
Ahmed Khalil Janabi/Al Jazeera
The police used tear gas and batons to disperse the protesters and made numerous arrests.
Ahmed Khalil Janabi/Al Jazeera
As the protests intensified, four Tunisian opposition groups, including the Popular Front, of which the Democratic Patriots is a component, announced they were pulling out of the national assembly and called for a general strike.
Ahmed Khalil Janabi/Al Jazeera
Belaid had been critical of Tunisia's leadership, especially the Islamist party Ennahda that dominates the government.
Ahmed Khalil Janabi/Al Jazeera
Earlier, crowds of mourners, chanting "the people want the fall of the regime", crowded around an ambulance carrying Belaid's body.