Chad holds divisive post-coup constitutional referendum

N'DJAMENA (Reuters) - Chad holds a referendum on a new constitution on Sunday that looks unlikely to mend deep divisions between the junta and opposing groups that have fuelled a political and security crisis in one of the world's poorest countries.

The military authorities have called the vote as a vital stepping-stone to elections next year - a long-promised return to democratic rule after they seized power in 2021 when President Idriss Deby was killed on the battlefield during a conflict with insurgents.