Lost in the Gulf of Siam
Departing Subic Bay, P.I. April 12 1945 on her second patrol, Lagarto proceeded to the Gulf of Siam to operate with Baya (SS-318). The two submarines rendezvoused on May 2, and immediately began an approach on a convoy of one tanker, one auxiliary and two destroyers. ... With this attack thwarted by the enemyâ€™s radar and subsequent gunfire, they withdrew until the following morning. Lagarto submerged on the convoyâ€™s track to make the initial attack, while Baya submerged ten to fifteen miles further along to follow up. ... A prolonged attack later in the day by Baya was driven off, and she received no further communication from Lagarto. ... Post-war review of Japanese records indicates a successful attack on a submarine on 3 May 1945 on the convoyâ€™s track. This attack is the most probable cause of Lagartoâ€™s loss.