The workers were constructing a toilet at a school next to the temple in Faridpur’s Madhukhali Upazila
The detainees are 50-year-old Billol Hossain, who was born in Comilla, and his Malaysian wife Hasna Ara Binte. Their three children are also in custody.
The incident occurred around 11am on Thursday in the prison school field in Kashimpur, said Dhaka Central Prison-2 Jailor Anwar Hossain.
The family had hired the helicopter from the Dhaka-based Meghna company to attend a wedding in Konabari, Hossain told bdnews24.com.
“We are questioning them. Further decisions will be made once we consult the inspector general and the deputy inspector general.”