The operation is being led by men of the Intelligence Response Team; the Technical Intelligence Unit; the Anti-Kidnapping Unit; and the Police Mobil Force.
The investigation is also supported by the Police Surveillance Helicopter Unit and the Special Investigation Team on Kidnapping and Terrorism.
Force Public Relation Officer, JIMOH MOHOOD, disclosed in a statement that the German nationals were working at a site at Janjala in Kagarko Local Government Area of Kaduna when they came under attack
He said the men were working with official of the National Commission for Museums and Monuments on excavation of Nok relics.
