The Ministry of Environment, Forestry and Tourism is investigating some of its workers at Etosha National Park for possibly playing a part in the rhino poaching syndicate which recently left 11 of the mammals dead. Addressing the media yesterday environment minister Pohamba Shifeta said they suspect the "act" was an inside job. All the rhinos killed were also dehorned. He said the ministry is broadening investigations to determine whether its workers were complicit in the matter. "This is not a normal incident of 11 rhinos poached in such a short time frame, because rhinos do not move together. But the situation is under control given we have arrested some of the perpetrators, and we will continue to arrest more," Shifeta said, adding his ministry has deployed the head of wildlife protection to ensure loopholes in the area are closed and no stone is left unturned.