Chad's military said Thursday it had carried out airstrikes on Boko Haram positions in neighbouring Nigeria to avenge twin suicide bombings in Chad's capital that were blamed on the jihadists.

Citing the "cowardly and barbaric acts perpetrated by Boko Haram terrorists" in N'Djamena on Monday, which killed 33 people, the army announced that the "the armed forces... on Wednesday carried out reprisal airstrikes on the terrorists' positions in Nigerian territory."