The government of Chad has accused the Central African Republic (CAR) of killing six of its soldiers and wounding five others in an attack in the south of the country.

Chad's Foreign Minister, Cherif Mahamat Zene, said troops from the CAR killed a soldier on Sunday morning in Sourou.

He said they kidnapped five others who were then killed close to the border.

A senior Chadian security official told the French news agency that the soldiers were pursuing rebels.

The government in the CAR capital, Bangui, often accuses Chad of trying to destabilise the country by supporting rebels.