The National Archives announced on Friday it had released 676 records pertaining to the investigation surrounding the assassination of President John F. Kennedy.

The disclosure marks the third public release of documents pertaining to the investigation.

The majority of the records released on Friday originated from the CIA, while others came from the departments of Justice and Defense, the House Select Committee on Assassinations and the National Archives.

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Friday's batch of documents include intercepts of Lee Harvey Oswald, who shot Kennedy in November of 1963 in Dallas, calling the Soviet Embassy in Mexico City.

Oswald visited the Soviet and Cuban consulates in Mexico City to reportedly obtain a visa in the weeks leading up to Kennedy's assassination.

The trip has fueled speculation about Oswald's activities in the weeks leading up to the assassination.

Last week marked the federal government's deadline to release the 3,100 unseen files, a deadline that was set by Congress in 1992 under the President John F. Kennedy Assassination Records Collection Act. The documents have been held in the National Archives and the majority are already public.

The release comes roughly a week after President Trump delayed certain records compiled during the investigation, citing national security concerns from the FBI and CIA.

"I have no choice today but to accept those redactions rather than allow potentially irreversible harm to our Nation's security," Trump said in the memo to department and agency heads released by the White House.

The administration said that 2,800 of the 3,100 unreleased documents were disclosed last week.

Officials said the remaining records would be released after a six-month review period, though with some redactions.