Bulgaria's chief prosecutor said Monday he did not believe that a Palestinian Arab who was found dead in Sofia last month was murdered, although a probe has not yet been completed.

Omar Nayef, 51, who was wanted by Israel over the killing of a Jewish man three decades ago, was found dead in the courtyard of the Palestinian Authority's embassy in Sofia on February 26.

Nayef's family accused Israel of assassinating him and last week said Bulgarian investigators were keeping them in the dark about their probe.

"At present, we do not think that it was a murder," the prosecutor, Sotir Tsatsarov, told journalists on Monday, according to AFP.