„We want the truth about Belaid’s murder unveiled,” Mongi Rahoui, a left-wing leader, said, denouncing “excessive force” by security forces.
Three other officials, including two security chiefs, were also dismissed over the death, the government said in a statement.
A 15-day curfew will be imposed in the Grand Tunis area as of Thursday, the governor of Ariana province Samir Abdeljawed announced on Wednesday night.
Tunisia in 2016 denied a Washington Post report that it had allowed the US to operate drones from its territory for missions in Libya against the Islamic State group.
But a court martial in 2017 in a case of sexual harassment by an American officer, reported in the US defence press, publicly confirmed the presence of an American squadron operating drones from within a Tunisian base in the northern region of Bizerte.
German Foreign Minister Heiko Maas, who was set to brief the meeting on the results of Sunday’s international summit in Berlin, is also attending.
Facebook has faced pressure to more transparently tackle misinformation since the revelation that Russia used Facebook to sway the 2016 U.S. presidential election.
„Lavrov’s visit will be an opportunity to discuss ways to strengthen bilateral cooperation between Tunisia and Russia in areas such as tourism, trade, investment, culture, transportation and finance,“ it added.