Tunisian President Kais Saied sacked Prime Minister Kamel Maddouri less than a year after his appointment, and named Sara Zaafarani as his replacement.
Zaafarani, who is an engineer and served as minister of Equipment and Housing since 2021, is the third prime minister in less than two years.
In recent months, Saied has sharply criticized the performance of ministers, saying many they have not met the required standards and that the expectations of the Tunisian people are high. Last month he sacked Finance Minister Sihem Boughdiri.
Economic growth has not exceeded 1.4% in the past year, and the North African country's public finances face a severe crisis that has led to shortages of key commodities including sugar, rice and coffee.
"We will continue the liberation battle until justice prevails for all citizens ... We will continue to thwart all conspiracies", Saied said in a speech at a National Security Council meeting on Friday.