President Recep Tayyip Erdoğan fired the head of Turkey's national statistics agency after a debate about the rapid rise in inflation in Turkey.
On Saturday, Erdoğan appointed the former deputy head of the Turkish banking supervisory authority, Erhan Cetinkaya, as the successor to the previous head of the authority, Sait Erdal Dincer.
The President gave no reason for his decision.
Dincer was criticized in early January after his agency reported a 36 percent rise in inflation over the previous year.
This was the highest value for more than 19 years.
The inflation rate had already reached around 21 percent in November 2021.
The opposition has questioned official inflation figures, suggesting that the actual rise in the cost of living is at least twice as high.
Erdoğan reportedly accused Dincer of exaggerating the extent of Turkey's economic crisis.
Inflation has now become one of the most important political issues.
The main reason for the inflation is the sharp fall in the national currency, the lira.
Turkey is heavily dependent on imports, especially raw materials and energy.
Erdoğan also appointed a new justice minister on Saturday.
The previous head of department, Abdulhamit Gül, will be replaced by former Deputy Prime Minister Bekir Bozdag.
Gül had previously announced his resignation in a brief statement on Twitter.