Islamist militants killed nine Nigerian soldiers in an attack on a military base in the northeast of the country, soldiers and a security agency official said.
A decade-long insurgency in the north-east, started by Islamist group Boko Haram in 2009, claimed more than 30 000 lives. A breakaway faction pledging allegiance to Islamic State has become the dominant group in the insurgency, attacking military bases.
The soldiers and security officer, all of who spoke on condition of anonymity, said Islamist militants attacked troops on Tuesday at a military base in Gudumbali in Borno, the state worst hit by the insurgency.
They said nine soldiers were killed and 27 were missing.
“We repelled the attack,” said Nigerian Army spokesman Sagir Musa. He was not aware of soldiers killed or missing.