Maradona's lawyer announces cause of death of star

Diego Maradona's former lawyer said the medical treatment given to his client was "terrible", after giving testimony in the investigation into the death of the Argentine football star.

"There were many mistakes made because Diego died, they inflated and inflated the poor guy until his heart exploded," Matias Morla told reporters after his more than three hours of testimony at the prosecutor's office in San Isidro.

Authorities in the northern suburb of Buenos Aires are investigating the circumstances of Maradona's death.

Morla said that during his last visit with Maradona on November 16, "he had a strange voice, robotic, very high-pitched and intermittent.

The lawyer denounced as "crazy" the family's decision to have Maradona recover outside of a hospital.

Maradona "had no reason to go to a house when the doctors said he had to stay in a clinic," Morla said, adding he believed his client had been "abandoned by his daughters."

Maradona died of a heart attack on November 25, aged 60, while recovering from an operation to remove a blood clot from his head.