Nigeria has convicted nearly 400 terrorists following mass trials held this week in the capital Abuja, the country's Attorney General said late on Friday.

The prosecutions, which began on Tuesday, are part of a series of trials involving Boko Haram and Daesh suspects that started in 2017 with more than 2,000 defendants.

Lateef Fagbemi, Nigeria's Attorney General, said more than 500 cases were presented to the Federal High Court during the latest proceedings.

"We brought 508 cases to the court and out of this number, we were able to secure 386 convictions, eight discharges, two acquittals and 112 cases adjourned to the next session or phase," Fagbemi said.

Reintegration into society

Sentences ranged from five years to life imprisonment, and judges stipulated that the convicts undergo rehabilitation and deradicalisation programmes to support reintegration into society.

The next phase of the trials is expected to begin by the end of May quarter, said Fagbemi.