“Less than 24 hours after the CBS Board of Directors let Les Moonves stay in his job despite sexual misconduct allegations, the CEO and other executives were accused of destroying evidence in the the media company’s increasingly pitched battle with Shari Redstone and her family-run National Amusements for corporate control,” Deadline reports.

“In potentially stunning and heavily redacted filing in Delaware that was unsealed this morning, Moonves, CBS COO Joe Ianniello and others are accused of using the self-destructing messaging app TigerText to communicate and ‘the systematic deletion of highly relevant documents…over a two year period,'” the story reports.

The report quotes a 15-page emergency motion filed July 23, which states: “The NAI Parties bring this motion in response to the CBS Parties’ recent admission that relevant evidence has already been destroyed, including after the CBS Parties filed suit, and to protect against the significant risk that additional spoliation could occur. … Once confronted, the CBS Parties acknowledged the use of the self-destructing messaging system.”

CBS responded with a statement saying company executives initiated the use of TigerText on the advice of the firm’s security team in the wake of the 2014 cyberattack on Sony Pictures Entertainment.

“TigerText was implemented by CBS’s Information Security Group for cybersecurity reasons following the Sony hack, and was not developed or used for any nefarious or sinister communications as some have alleged,” the CBS statement says.