Nigerian president Goodluck Jonathan has declared a state of emergency in three northeastern states, ordering in more troops to try to stem an increasingly violent Islamist insurgency.
"It has become necessary for Government to take extraordinary measures to restore normalcy," he told his country.
"Those insurgents and terrorists who take delight in killing our security operatives, whoever they may be, wherever they may go, we will hunt them down, we will fish them out, and we will bring them to justice. No matter what it takes, we will win this war against terror."
Islamist sect Boko Haram has intensified its attacks on security forces and government targets in its northeast stronghold this month, prompting Jonathan to declare an emergency in Borno, Yobe and Adamawa states.