Nigeria's passenger train. Passengers at the Idu Railway station traveling for the Christmas celebrations to Abuja. The train service resumed linking the capital city with a northern city eight months after it was suspended following one of the most high-profile attacks in the country. Gunmen with explosives in March blew up the tracks, assaulted the train travelers between Abuja and Kaduna, and kidnaped some of its passengers and opened fire killing eight people, while some sustained injuries. Nigeria.