DUBLIN, Ireland, Dec. 29 (UPI) -- Recently declassified Irish government documents show that three threats were made against President John F. Kennedy's life during his 1963 visit to Ireland.

Two of the threats were telephoned to the Irish police or Gardai, the BBC reports. The third was left by telephone with Independent Newspapers.

Kennedy, the first sitting U.S. president to visit the Republic of Ireland, was in the country for three days in June 1963, five months before his Nov. 22 assassination in Dallas.

One of the threats phoned in to police said a sniper would shoot Kennedy as he drove in a motorcade from the Dublin airport to the Irish president's official house, while another said a bomb would be on Kennedy's plane when he took off from Shannon. The man who called Independent Newspapers said the assassination would be at Dublin Airport.

While the Gardai regarded all three warnings as hoaxes, they increased security. When Kennedy left Dublin Airport, 42 percent of the police officers in the country were lining the route.