A nation of 150 million, is divided between a largely Christian south and a Muslim north. In recent months, the country has faced an increasing threat from a radical Muslim sect called Boko Haram, which is pressing for a strict adherence to Shariah law throughout the country. The sect has carried out assassinations and bombings, including the June car bombing of the national headquarters of Nigeria's federal police that killed at least two people.
It has been theorized for months that Boko Haram may be attempting to link itself with two al-Qaeda groups in other African countries to mount joint attacks in Nigeria.
Details on the bombing and appropriate analysis will be disseminated as soon as possible.