Analysis of information sources in references of the Wikipedia article "USS O'Brien (DD-725)" in English language version.
In November 1965, while parolling the Taiwan Strait, USS O'Brien arrived near Wuchiu Island just after an attack on two Nationalist patrol boats by PLAN torpedo boats and gunboats. One Nationalist vessel, PCE 61, had been sunk. O'Brien rescued survivors and transported them back to land. The PRC's 14 November "serious warning" about the incident was number 395.