Mr Makki was arrested by police between 21:00 and 22:00 local time on Wednesday evening, his wife told the CPDC.

BBC: Chad: N'Djamena deaths as 'coup' foiled

Mr Makki's coalition Co-ordination of Political Parties for the Defence of the Constitution (CPDC), told the BBC it was confused by his arrest.

BBC: Chad: N'Djamena deaths as 'coup' foiled