Nigeria is training its first group of spe...t anti-terrorism police.
The 308 officers will be deployed to the northern city of Kano, the Niger Delta city of Port Harcourt and the commercial capital, Lagos.
Last year, the US embassy issued a warning that al-Qaeda was planning to attack US and UK interests in the country.
Six people are currently in jail facing terrorism charges, but lawyers say the evidence against them is weak.
The force will also investigate incidents of "domestic terrorism", including Niger Delta militancy.
The commander of the anti-terrorism force says although the unit is small, their training would be "world-class".
Some officers will be sent to the US or the UK for courses.
"The number of officers in the unit is not important, it is the quality of their training that matters," said Police Commissioner Bala Hassan.