A man in handcuffs was spotted at Halaevau wharf on Monday morning.
We have been reliably told four prisoners were at the wharf at the time ready to be transferred to Tongatapu on MV Tongiaki.
It is believed the inmates were the four suspects arrested at Ha’alefo prison after pots of cannabis plants and a container of homebrew were found in the compound on November 16.
As Kaniva news reported last week, two prisoners were charged in relation to possession of illicit drugs and two faced charges of manufacturing prohibited alcohol.
The arrests came as a result of a Police investigation.
A 26-year-old man from Ha’alaufuli was arrested and charged with possession of six cannabis pot plants.
A 29-year-old man from Tatakamotonga, Tongatapu was arrested and charged with possession of five cannabis pot plants.
The two other inmates, a 27-year-old man from Vaini, Tongatapu and a 20-year-old- man from Mataika, Tongatapu were arrested and charged with manufacturing of four litres of homebrew.
Police could not be reached for comment.