The government in Chad says security forces have foiled an attempt by a group of army officers to destabilize the country.
The government says security services had been arresting people linked to the plot since 8 December.
It says the head of the plot was the president of the Chadian Human Rights Organisation, Baradine Berdei Targuio.
Chad has been relatively unstable since April last year when the long-time ruler Idriss Déby died after visiting the front line to fight rebels.