More than 300 people were investigated in the case of the death of military personnel in Mengistau The criminal investigation into the death of military personnel during the exercise continues. The investigating authorities conducted more than 30 tests and studies. Eight officials, including the navy general and the captain of the boat, were taken into custody on suspicion of neglect of duty and violation of navigation rules. In the near future it is planned to complete the investigative actions and introduce the case materials to the participants in the process. The investigation is under the special supervision of the Attorney General's Office.