The killing of an army couple has been linked to Nigerian separatists.
In a statement, he stated, "The Nigerian army will guarantee that the culprits of this atrocious assault committed on its personnel do not go unpunished."
Boakyewaa Lawrencia 
The murder of an army couple in Nigeria has been linked to the Indigenous People of Biafra (Ipob), a separatist group in southeast Nigeria.
The couple was killed on their way to Imo state for their traditional wedding over the weekend.
The killings were described as "gruesome, brutal, and most vile" by army spokesman Onyema Nwachukwu.
He put the killings on Ipob's armed wing, the Eastern Security Network.
In a statement, he stated, "The Nigerian army will guarantee that the culprits of this atrocious assault committed on its personnel do not go unpunished."
It's unclear whether Ipob has replied to the army's charges.
According to the local Punch newspaper, the attackers recorded the incident and distributed it online.
Nnamdi Kanu established Ipob in 2014.
It wants a group of states in south-east Nigeria, primarily populated by members of the Igbo ethnic group, to secede and form Biafra, an independent country.
