Families of victims of Tunisia's 2011 revolution have interrupted a ceremony marking the uprising's fourth anniversary to demand justice.

President Beji Caid Essebsi was forced to temporarily halt the awards presentation Wednesday at the presidential palace in Carthage, outside Tunis. The protesters said they had not been compensated for the deaths of their sons and daughters, who triggered the uprising that inspired the Arab Spring protests.

Presidential spokesman Moez Sinaoui said the families were received later by the president.

Officials put the number of deaths at 330, with 4,000 injured, in the unrest that ousted dictator Zine El Abidine Ben-Ali on Jan. 14, 2011. It was triggered by the self-immolation of a poor sidewalk vendor in Sidi Bouzid on Dec. 17, 2010, after police took his merchandise.