Updated

Legislators are calling in Nigeria's security chiefs to discuss extending the year-old military state of emergency to fight an Islamic uprising, and the government says a mastermind of a bomb that killed nearly 100 people has been arrested in neighboring Sudan. Security agents say the man is a former military intelligence officer and deserter from the Nigerian army.

The state of emergency is under attack from northeastern politicians where it holds sway for failing to curb the uprising and bringing much misery through security force abuses.

Senators called in security chiefs to discuss the president's request to extend the emergency that expires Thursday.

Late Wednesday the government announced the arrest of Abubakar Sadiq Oguchwe in the April 15 bombing in the capital, Abuja, that it said killed nearly 100 people.