Solidarity rallies were held in cities including Tunis, Sidi Bouzid and Gafsa on Thursday, with several reports of suicide attempts as frustration over the lack of jobs boiled over.

A policeman was reportedly killed when demonstrators overturned his car in the town of Feriana, Al Jazeera reported on Friday.

Protests and clashes with security forces started in Kasserine on Saturday after the death of an unemployed man who was electrocuted on top of a power pole near the governor's office.

Ridha Yahyaoui, 28, was protesting because his name was removed from a list of hires for coveted public sector jobs.

The government has ordered an investigation into the circumstances surrounding his death.

Speaking to Al Jazeera on Thursday night, Wajdi Khadraoui, a Kasserine-based activist, said that protests were ongoing "in neighbourhoods throughout Kasserine".

The city of Kasserine is near the Algerian border, and like in many of the country's peripheries, locals feel neglected by the government.

Al Jazeera's Hashem Ahelbarra, reporting from Kasserine, said: "People are saying that they took to the streets in 2010 for the sake of a better life, but they feel like they have been abandoned by consecutive governments that took over, and that the only way out is to take to the streets."

He saw at least two people about to jump from a high building in suicide attempts, but the pair were rescued.

He said that a crowd of hundreds gathered outside the governor's office in Kasserine to demand information on a government announcement the previous day of plans to create 5,000 jobs.

Ahelbarra said the average rate of unemployment was about 15 percent in Tunisia but that in Kasserine it was higher, at 30 percent.

Police have fired tear gas to disperse the protesters, and at least one policeman died in clashes near Kasserine on Wednesday.

In the face of the unrest, Prime Minister Habib Essid cut short a European tour to return home on Thursday.

Tunisia's 2011 revolution was sparked when Mohamed Bouazizi, a 26-year-old street vendor, fatally set himself on fire to protest police harassment.

Protests spread throughout the country and eventually ended the 23-year presidency of Zine El Abidine Ben Ali.

The post-revolution transitional period has brought about uncertainty, economic instability and sporadic political violence.