RAMALLAH: A Palestinian investigator said on Tuesday he would soon name the people he believed were responsible for the death of former leader Yasser Arafat, almost a decade after he started searching for suspects.

An official Palestinian Authority investigation headed by Tawfiq Tirawi has yet to produce any evidence.

Arafat’s widow has also said that a member of Arafat’s own inner circle was responsible, stoking tensions among senior officials.

“I promise that the next press conference will be the last, and will cast into the light of day everyone who perpetrated, took part in or conspired in the matter,” Tirawi told Palestine Today television.

“We are in the last 15 minutes of the investigation,” he added.

Arafat died at a French military hospital near Paris on Nov. 11, 2004, with doctors unable to say what killed him. At the time, an autopsy was never carried out — at his widow’s request.

Meanwhile, French experts have ruled out the poisoning theory.

"Our report rules out the poisoning theory and goes in the sense of a natural death," a source said.

The French experts' findings differ significantly from those of Swiss scientists, who said last month that their research offered some support for the suggestion Arafat was killed by polonium poisoning.