A 6.0 Mw earthquake caused up to NZ$6 billion of additional damage to Christchurch, New Zealand, which was still recovering from an earthquake four months earlier.
The New York Times published the first excerpts from the Pentagon Papers, a 7,000-page classified Department of Defense history of the United States' political and military involvement in the Vietnam War.
Soviet aircraft shot down a Swedish military plane carrying out signals-intelligence gathering operations, followed three days later by the shootdown of a second plane searching for the first one.