Four persons, including an official of Ghana Post and three Nigerians have been arrested for allegedly trafficking in narcotic drugs through the post.The suspects Ms Philosophina Sackey, 53, a Deputy Manager of Post at Ghana Post; Augustine Nwosu, 53, a food vendor; Samuel Ossy Owuamanam, 39, a trader, and Sunday Ene, also known as Edwaro Tetteh, 30, a spare parts dealer - were arrested by officials of the Narcotics Control Board (NACOB) at their various hideouts in Accra on Monday.According to the Deputy Executive Director of NACOB, Nil Lantey Blankson, the arrest of the four suspects was a collaborative effort between NACOB officials and their external partners in the United Kingdom and the Caribbean.He said about two weeks ago NACOB had information from its partners that some people had been sending drugs through the post.He said the partners hinted that a parcel containing a quantity of cocaine had been sent by one Solomon Olembe from Port of Spain in Trinidad and Tobago and that the parcel had been addressed to one Phina Sackey, a staff of Ghana Post at the General Post Office, in Accra.He said based on that information, NACOB mounted surveillance at the General Post Office for almost two weeks before the parcel arrived and was delivered to Ms Sackey, who took custody of it and signed for it.He said she was subsequently arrested and when she was questioned, she mentioned Ene as the owner of the parcel.Ms Sackey was asked to call Ene and inform him about the arrival of the parcel, which she did, and not quite long after the call Ene arrived at the General Post Office, accompanied by Owuamanam, and the two of them were arrested as soon as the parcel was handed over to them.Upon interrogation, the two mentioned Nwosu as the real owner of the parcel and quickly led NACOB officials to Nwosu's house at Mallam, an Accra suburb, where he was arrested.Nii Blankson said after a search of Nwosu's room, fake 100 dollar notes totalling $10,000 were found.Investigations are still ongoing, after which the suspects would be arraigned to answer charges, he added.