Raju -chair of the marketing department at the Wharton Business School, University of Pennsylvania, S.Kaura-CEO corporate social responsibility, Times of India group, V.
The BBC's Abdullahi Kaura Abubakar in Kano says the Sunday evening attack on a police station in the Naibawa district, on the outskirts of Kano, happened just before the start of the dusk-to-dawn curfew.