[6] 
Top Secret
2 December 1941
From: Cincaf
Action: Opnav
Info: Cincpac
020345

Patrol plane sighted 9 submarines speed 10 course south at 0230 Greenwich Lat 13-10 N, Long 110-00 East.

(EXHIBITS OF JOINT COMMITTEE , EXHIBIT NO. 78, DESPATCHES ON KRA PENINSULA ALERT (1941))