Forensic experts say no traces of chemical agents have been found in the bone remains of Chile's Nobel Prize-winning poet Pablo Neruda.

Neruda died under suspicious circumstances in the chaos that followed Chile's 1973 military coup.

The official version is that the poet died of cancer. But his body was exhumed on April to see if he died of poisoning, as his driver and others have long suspected.

The results were announced Friday after 15 Chilean and foreign experts performed tests for more than six months.