An armed gang of five men killed a policeman and abducted a German citizen on Monday (16 April) as they travelled to a construction site in the northern Nigerian state of Kano.
The men on motorcycles opened fire on a vehicle carrying workers to a construction site run by the firm, Dantata & Sawoe, in Kano city, reports Deutsche Welle.
The police escort was killed and the German national, an engineer named Michael Cremza, was abducted, reports Nigerian newspaper, Vanguard.
Kidnapping for ransom is common in parts of Nigeria.
In northeastern Nigeria the military is fighting Islamist Boko Haram militants.
The "manhunt of the abductors is ongoing," said Kano state police in a statement.
Image: Kano, Nigeria (Wikimedia Commons/Jonathan Riddell)