Nine Chadian soldiers were killed during an attack on their position early Friday by Nigerian Islamic sect Boko Haram attackers in the Lake Chad basin, one source from Chadian army told Xinhua.

About 40 attackers were shot dead by the Chadian army, the source said.

Chadian army spokesman Azem B. Agouna said the attack took place at 5:00 am (4:00 GMT) on Friday, at a position of the Chadian army based at Kaiga-Kindiria, on the border with Nigeria. He added the attackers were repulsed by the Chadian army.

On Nov. 1, 2015, three Chadian soldiers were killed and 14 others wounded in two simultaneous terrorist attacks at the army positions in Bohama and Kaiga-Kindiria. During these attacks, 16 attackers were also killed.

Source: Xinhua