According to the Public Relations Officer of the 1 Garrison of the Ghana Armed Forces, Lt Maxwell Asola, all eight pirates are Nigerians.
Owners of the hijacked ship alerted the Ghana Navy about the incident and requested for assistance.
MV Mariam is scheduled to dock at the port on Sunday.
Lt. Maxwell Asola told the Daily Graphic that the arrest took place at about 10:30am and that the owner of the vessel in lodging the complaint, said the pirates told him via telephone that they wanted to use the vessel to carry out an attack and banged the phone.
This prompted the owner of MV Mariam to approach the Ghana Navy for assistance.