Members of Tunisia's main ruling Islamist party called for a rally in the capital on Saturday, a day after police clashed with protesters at the funeral of murdered opposition figure Chokri Belaid.

The Ennahda party demonstration was to take place in the centre of Tunis on Habib Bourguiba Avenue, where the latest violence has taken place, the party said in a statement.

The protest would "defend the legitimacy of the national constituent assembly," where the Ennahda-dominated coalition holds a majority, and would "fight against (political) violence" it said the opposition is using.