Federal prosecutors in the Feeding Our Future fraud trial told the judge on Tuesday that a witness set to testify in the case reported that someone had tried to intimidate them.

Allegations of witness tampering in the federal Feeding Our Future trial rocked the courtroom Tuesday, leading to new security measures and a new investigation into the role one of the defendants may have played in the incident.

Assistant U.S. Attorney Thompson told the judge that he received information that a cooperating witness was approached in the hallway.

Feeding Our Future defendant Salim Said’s relative allegedly invited witness Sharmake Jama into a bathroom before his testimony.