The Borno State police command on Friday paraded a 28-year old man arrested while trying to transport a large cache of ammunition out of Maiduguri, the state capital.
The suspect, Clement Asuk, said he was helping to deliver the ammunition to a community in Cross River State, which he said is currently at war with fighters of the separatist group, the Indigenous People of Biafra (IPOB).
The police said the suspect was arrested at a popular Maiduguri motor park as he was about to exit the town with a heavy suitcase filled with high calibre bullets, including 126 anti-aircraft bullets.
It was the biggest interception of illegal military weapons of ballistic capability ever recorded in the history of the decade-old Boko Haram insurgency, police said.
The Nigeria Police and the military had in the past arrested and court-martialled soldiers involved in stealing and selling weapons and ammunition to criminals.