At 0300 the destroyer HMAS HOBART, (CAPT K. W. Shands, RAN), was accidentally attacked by a US Air Force F-4 fighter, off Cap Lay, Vietnam. The aircraft fired a total of three missiles at HOBART, in two separate attacks. All three missiles hit the ship, and two RAN personnel, Ordinary Seaman R. J. Butterworth, and CPO R. H. Hunt, were killed, and seven others wounded. An enquiry into the incident revealed that due to the darkness, the pilot of the aircraft mistook the radar picture of the ship as an enemy helicopter.