The suspects, who include two men and a woman, were arrested together with their host by a joint police and military team at Akoon, a suburb of Tarkwa in the Western Region.
Briefing the Ghana News Agency in Tarkwa, Superintendent of Police Augustine Anyarah, the Divisional Crime Officer, said on June 3, the police had a tip-off that the suspects and their three children had come to seek refuge with their relatives at Akoon.
He said when a team of police and military officers went to the said house at 0200 hrs they arrested six people from Denkyira-Obuasi and five members of the family they were living with.
Superintendent Anyarah said after they had screened the suspects they settled on four and released the wife and three sons of the landlord who was hosting the suspects.
He said one of the suspects who was a Junior High School student said he was in school when the incident occurred and his 16 year-old sister who was carrying a 6 month old baby also claimed a friend narrated what happened to her and they were therefore released on bail.
Mr Anyarah did not disclose the identity of the suspects adding that though they may not be directly involved in the killing, they may have information to help the police arrest the perpetrators of the crime.
He said they had conveyed them to the Criminal Investigation Department headquarters in Accra for further interrogation.
Mr Anyarah assured Ghanaians that the police were making every efforts to arrest all those connected to the crime and appealed to the public to provide any information on the military officers death to the police to speed up prosecution.
Captain Mahama was lynched last Monday by a mob at Denkyira-Obuasi who allegedly mistook him for an armed robber.