(A car burns at the scene of a bomb explosion at St. Theresa Catholic Church at Madalla, Suleja, just outside Nigeria's capital Abuja, December 25, 2011. The Islamist militant group Boko Haram claimed responsibility. REUTERS/Afolabi Sotunde )

Nigeria has held its first indirect peace talks with Islamist sect Boko Haram, meeting mediators to discuss a possible ceasefire, political and diplomatic sources have said,

Here are some facts about Boko Haram:

* Boko Haram became active in about 2003 and is concentrated mainly in the northern Nigerian states of Yobe, Kano, Bauchi, Borno and Kaduna.

* Boko Haram, which in the Hausa language of northern Nigeria means “Western education is sinful”, is loosely modeled on the Taliban movement in Afghanistan.

* The group considers all who do not follow its strict ideology as infidels, whether they be Christian or Muslim. It demands the adoption of sharia, or Islamic law, across Nigeria.