Six suspects had been arrested following the kidnap last week, but Police said three other suspects are still on the run.
Six suspects had been arrested following the kidnap which occurred last week along the Benin-Agbor Road.
It was gathered that detectives of the Inspector-General of Police Special Monitoring and Intelligence Team, are hunting for three other suspects of the 12-man gang.
"We now have nine of the gang members in custody. We are confident that we would get the remaining three suspects in a short while," Punch quoted a Police source as saying.
Mrs Emefiele was kidnapped on Thursday, September 29, 2016, and was released on Saturday, October 1, 2016.