The police have retrieved a bomb and 36 live pistol ammunition at the crime scene were the two kidnapped Canadian nationals were kept.
Lauren Tilley and Bailey Chitty were rescued by personnel of the national security and the police on Wednesday after being held hostage for a week in Kumasi.
Other offensive weapons including two pairs of scissors, knives with blood stains and a piece of torn singlet soaked with suspected blood were found at the Amoam-Achease location where the suspects were being kept.
They also retrieved starter packs of Airtel/Tigo and MTN including five empty shells of pistol ammunition, Starrfm.com.gh can confirm.
The police have cordoned off the crime scene as further investigations continue.
The military command is analyzing the grenade to help with investigations, a police source confirmed to Dailymailgh.com.
The rescue operation on Wednesday lasted for less than half an hour, according to Ghana’s information minister Kojo Oppong Nkrumah.
Eight suspects are currently in police custody assisting with investigations. They include five Ghanaians and three Nigerians, information Minister Kojo Oppong Nkrumah said at a press conference in the capital Accra.
Mr. Nkrumah said the operation did not include any foreign security.
He said: “The operations started Tuesday evening and there was no foreign assets involved in the operation. It was entirely done by the national security and security outfits of Ghana. The operation lasted for 25 minutes.”
“We want to assure the world that Ghana is safe and there is no security threat,” the minister added.