President Joe Biden said that the United States would “unfortunately” not release the public records regarding President John F. Kennedy’s assassination because the COVID-19 pandemic has caused delays at the agencies responsible for organizing the records.

The decision was signed off by Biden in a memo and released by the White House on Friday.

“Temporary continued postponement is necessary to protect against identifiable harm to the military defense, intelligence operations, law enforcement, or the conduct of foreign relations that is of such gravity that it outweighs the public interest in immediate disclosure,” the memo states.