Boko Haram leader releases new video

Boko Haram leader Abubakar Shekau has released a video, saying the militant group was behind a series of attacks in north-eastern Nigeria during the festive season. 

The video comes after President Muhammdu Buhari said in his New Year's Day message that the militant group had been "beaten", and it carried out only "isolated attacks". 

In the 30-minute video, Shekau said "we are in good health" and the security forces "can’t do anything against us". 

The video showed footage from a Christmas Day attack on a military checkpoint in Molai village on the outskirts of Maiduguri, the main city in north-eastern Nigeria.