Damian Pachter, the Jewish journalist believed to have been first to break the news on the death of Argentinian prosecutor Alberto Nisman, has fled Argentina for Israel in fear for his life.

Pachter works for the Buenos Aires Herald.

Nisman was set to testify in Congress, and he was found hours before he was supposed to that. Nisman, 51, was investigating the bombing of a Jewish centre in the capital in 1994, which left 85 people dead, and had accused several high-ranking senior government officials of involvement in a plot to cover up Iran's alleged role in the bombing. His list of involved persons included President Cristina Fernandez de Kirchner and Foreign Minister Hector Timerman.

Pachter said his phone was tapped and said, according to the BBC, "I am leaving because my life is in danger."

For Haaretz, Pachter talked about what he called “the craziest 48 hours of my life.”

Pachter described being allegedly tailed by a government agent: “I was sitting around there for two hours or so when a very strange person came in. He wore jeans, a jeans jacket and Ray-Ban sunglasses. I noticed him immediately but stayed where I was. He was sitting two tables from me.”

He also detailed his escape from the country.

“I had to keep a low profile in order to get by the security forces. So I went back to the Retiro bus station -- the scariest part of that long day. I was sure that if something happened, it would happen at the train station, a very dangerous place at night," Pachter said.

"Argentina has become a dark place led by a corrupt political system. I still haven’t figured out everything that has happened to me over the past 48 hours. I never imagined my return to Israel would be like this."