Tunisia's leaders started talks on Thursday with opposition and civil society representatives to try to defuse the country's latest political crisis, prompted by last week's murder of an opposition MP.
President Moncef Marzouki, a secular ally of the ruling Islamist Ennahda party, met with leaders of the Republican Party, who are demanding "a national salvation government" led by an independent, a video released by the presidency showed.
"The rescue of Tunisia lies in the formation of a national salvation government headed by an independent and consensual personality whose members will not stand in the forthcoming elections, with a programme to combat terrorism and political violence" said Maya Jribi, a Republican leader.
Marzouki did not comment.
Meanwhile, Islamist Prime Minister Ali Larayedh, is due to meet with Houcine Abassi, secretary general of the powerful General Union of Tunisian Workers, which is demanding the resignation of the government.
Larayedh has refused to step down, promising a new constitution by August and elections in December.
But the proposed constitution does not enjoy consensus, and 60 deputies have demanded the dissolution of the national assembly.
The Thursday killing of Mohammed Brahmi last, the second assassination of an opposition figure since February, has fuelled growing calls for the resignation of the coalition government headed by Ennahda.
Many Tunisians blame the government for the two killings, particularly for failing to rein in radical Islamists accused of a wave of attacks since strongman Zine El Abidine Ben Ali was toppled in a popular uprising in 2011.
Ennahda is seeking to defuse the crisis by calling for a new national unity government that would include more parties.