Tunis: Tunisian soldiers fired in the air to break up clashes between hundreds of young people in the southern city of Gafsa on Wednesday, residents and local media said.

"Clashes broke out in Souk Fajr and Hay Nour. Security forces fired tear gas during clashes between hundreds of youths who used knives and swords," Karim Ben Saleh, a local resident, said by telephone.

"There are no deaths. There are only five people wounded." The Tunisia state news agency said the army fired shots in the air to disperse youths.

The cause of the clashes in the city about 300km south of Tunis was not clear and government officials were not immediately reachable for comment.

"Shops have been closed and the city is completely empty. People have returned to their homes because they are afraid," said Ben Saleh.

Widespread protests

Widespread protests in Tunisia six months ago forced President Zine Al Abidine Bin Ali out after 23 years in power, sparking the Arab Spring which saw revolution quickly spread to Egypt, Yemen, Libya, Bahrain and Syria.

However, disturbances and demonstrations have continued in Tunisia, illustrating continued political instability and the failure of the revolution so far to meet the expectations of many Tunisians.

In a speech in Tunis earlier on Wednesday, the country's prime minister said he was confident the revolutions shaking other parts of the Arab world would succeed.

"If this does not happen today, it may be tomorrow," interim Prime Minister Beji Caid Sebsi said in a speech.