Police have arrested a fourth person in connection with the alleged plot to kill the Prime Minister Tuilaepa Sailele Malielegaoi.
Newsline Samoa has confirmed the new arrest from sources connected to the police investigation of the alleged conspiracy.
Yet to be confirmed is the identity of the fourth alleged plotter.
The Ministry of Police is yet to make a public statement. The Deputy Commissioner of Police was also unavailable for comment.
The four alleged plotters are charged together and will appear in court next week for mention of criminal charges against them.
All are due to make first court appearances next week on one count each of conspiracy to murder the Prime Minister.
Three of the alleged murder plotters have already been identified as Malele Paulo or King Faipopo, Lema’i Faioso Sione and Taualai Leiloa.