Al-Jazeera Video: Thousands expected at Tunisia opposition leader's funeral

"Tunisian protesters clashed with police at Bourgiba square - the place where thousands converged for days in December 2011, sparking a revolution that led to the downfall of former president Ben Ali and later spread across the region. Now the demonstrators are united against the ruling Ennahda party which they accuse of assassinating opposition leader Shokri Belaid. Tension is on the rise and the largest labour union has called a general strike on Friday when thousands are expected to take part in the funeral of Belaid. Al Jazeera's Hashem Ahelbarra reports from Tunis."