Boko Haram gunmen have attacked and killed 24 security personnel after simultaneous raids in the north-eastern town of Buni Yadi, security sources and witness said.
The attacks occurred at a Nigerian military base and adjacent police barracks, not far from where the Islamist insurgents shot and burned to death 59 pupils at a boarding school in February.
The Nigerian military has flown more than 300 sorties in the hunt for the abducted schoolgirls, a Major has told ITV News' Rageh Omaar.
A newly released video from Boko Haram reportedly shows the kidnapped Nigerian schoolgirls.
The man who started a viral hashtag campaign in support of the kidnapped Nigerian schoolgirls says it has forced the government to act.