According to the director of the institutional communication and press office of the general directorate of SIC, Manuel Halaiwa, the goods were on the construction site of a construction company, in the municipality of Camama. Two Vietnamese men, aged 36 and 43, both construction engineers, were arrested at the scene, indicted for the crimes of criminal association and environmental aggression. The men, in order not to attract people's attention, buried 31 pieces of raw ivory in the yard of the shipyard and another 1,200 pieces already worked, and, on top of the articles, piled up several wooden planks to hide them. The Criminal Investigation Service learned of this ivory trafficking scheme, thanks to an anonymous tip. From the amount that was seized, the SIC presumes that "the accused did not work alone and had the help of Angolan hunters, who sell each piece for almost 100,000 kwanzas," said the chief superintendent of criminal investigation Manuel Halaiwa. 31 pieces of raw ivory, 420 worked in the form of rings, 230 in sticks, 540 in cubes, 20 kilograms in the form of spheres and six mussivi wood planks were seized at the site.