Onyejiuwa, who had been in Bangladesh for three months, was detained by a team of detectives from a hotel on the Dhaka-Sylhet Highway on Thursday
A Sylhet court has sent suspected Nigerian conman Donatus Emeka Onyejiuwa to jail after two-day remand.
Chief Metropolitan Magistrate Saifuzzaman Hiru issued the order Sunday evening after Onyejiuwa was produced before his court, said Shah Paran police station OC Akter Hossain.
Onyejiuwa claimed he was innocent, OC Akhter said, but added that police had irrefutable evidence against him.
The OC said currently a special police team is in pursuit of other men involved in conning a Shahjalal University of Science and Technology (SUST) professor of thousands of US dollars.
On Friday, the Nigerian national was put on the two-day remand.

Onyejiuwa, who had been in Bangladesh for three months, was detained by a team of detectives from a hotel on the Dhaka-Sylhet Highway on Thursday.
He was taken to Sylhet for interrogation and produced before the court on Friday.
Onyejiuwa is allegedly part of an international gang which conned Tk4.76 lakh out of Prof Faruque Miah of SUST’s Genetic Engineering Department, on the pretext of making arrangements to send the academic to a seminar in the United States.
A case was also filed at Shah Paran police station under the Special Powers Act, 1974 over the matter.