IOWA CITY, Iowa (AP) — Tyson Foods has suspended top officials at its largest pork plant and launched an investigation into allegations that they bet on how many workers would get infected during a widespread coronavirus outbreak.

Tyson Foods President and CEO Dean Banks said Thursday that he was “extremely upset” about the allegations against managers at its plant in Waterloo, Iowa, saying they do not represent the company’s values.

He says the Arkansas-based company has retained the law firm of Covington & Burling LLP to conduct an investigation, which will be led by former U.S. Attorney General Eric Holder.

He says if the claims are confirmed, “we’ll take all measures necessary to root out and remove this disturbing behavior from our company.”