On June 7 experts from Chile will exhume remains of Chile’s former president Eduardo Frei Montalva ( 1964-1970 ), who is supposedly poisoned by the agents of the dictator Augusto Pinochet. Researchers also need to make a bone analysis, in order to shed a light on the circumstances of his death, reports  TASS.

This will be the second exhumation of the former president's remains. Previously conducted tests revealed remains of the mustard gas and thallium in the body of the former president. In 2013, another study proved that the president was poisoned with sarin. Frei Montalva was subjected to sharp criticism during his military dictatorship. He died in 1982 due to hernia treatment in one of the hospitals in Santiago. The officially stated cause  of his death is bacterial infection .

In 2009, 6 people, including doctors and secret police agents were charged of poisoning the former President. In 2014 the investigation was stalled, and it was officially closed. However, a year later, the Chilean Court of Appeals to resumed the investigation.

In September of 1973 , the junta led by the General Pinochet organized a coup and overthrew legally elected president Salvardo Aliende. According to the official sources, during Pinochet’s military dictatorship in Chile, 1973-1990 , 3225 people were killed proceeding from political motivations.