Eric Trump, one of Donald Trump’s sons, reportedly received a threatening letter on Thursday. It was sent to his residence at Trump Parc East in Manhattan and opened by his wife, Lara.
Sources told CBS News and the Associated Press that the Secret Service, the FBI and the New York Police Department are already investigating the piece of mail.
The CBS News source said that the letter appeared to have a Massachusetts watermark. It warned that if his father did not drop out of the presidential race, his children would be hurt.
Early tests have shown that a white substance included in the envelope was not hazardous, a source told the AP.
Eric Trump, 32, has appeared at campaign events for Trump. His mother is Trump’s first wife, Ivana.
Trump has not commented on the incident yet. He is currently leading the race for the Republican nomination with 671 delegates.