Over 110 people have lost their lives in connection with a Boko Haram attack in western Chad, according to the country's military.
More than 90 of the dead belonged to the Islamist group and 17 were soldiers, according to the army.
The area around Lake Chad has been plagued by repeated terrorist attacks carried out by, among others, Boko Haram and IS in West Africa over the past year. Last month, 40 soldiers were killed in an attack on a military base in the country.
Jihadist Boko Haram was founded in the early 2000s in Chad's neighboring country Nigeria, and has since spread to several countries in the region.