The Economic and Financial Crimes Commission (EFCC) has arrested former Interior minister in the Jonathan administration, Abba Moro.
It is believed that the former minister is being quizzed over the immigration recruitment exercise which led to the death of about 20 young graduates.
A source from the anti-graft agency told Channels Television on Monday evening that Mr Moro will be arraigned as soon as it finalises its investigation.
In 2014, the immigration service under his watch organised a recruitment exercise nationwide on the same day and due to the massive crowd, officials of the immigration were unable to effectively control the crowd and twenty young graduates died in the stampede that followed.
Former President, Goodluck Jonathan, ordered an investigation into the situation but the report is yet to be made public.