"I will kill you", the well-known prosecutor is being threatened with death, he is investigating the former president of...

The Federal Bureau of Investigation and the New York Police Department are investigating a death threat sent to Manhattan District Attorney Alvin Bragg after an envelope containing white powder was sent to him.

Bragg, who is investigating former US President Donald Trump over a $130,000 payment he allegedly gave to adult film actress and director Stormy Daniels in 2016.

Bragg has presented evidence to a grand jury that is considering whether to indict Trump, who has been tipped to face criminal charges over paying hush money to actress Daniels.

Police sources said the letter was addressed to Manhattan District Attorney Alvin Bragg and read: “ALVIN: I WILL KILL YOU!,” according to NBC News.

After the expertise, the prosecutor's office said that there was no dangerous substance inside the envelope.

Authorities said markings on the envelope indicated the letter was mailed from Orlando, Florida earlier this week. The New York Times also noted that, even if Trump is indicted, the maximum sentence is four years in prison.

Trump is the first announced candidate for the presidential election next year, along with Nikki Haley, former ambassador to the UN, in the Republican primary race.

Most polls show Trump ahead of potential rivals, including Florida Gov. Ron DeSantis.
Former President Trump is also being investigated over classified documents seized in Florida last summer and his efforts to overturn the results of the 2020 presidential election.