Russian merchant ships bombed by Japanese around 300 miles northeast of Singapore according to the U.S. Joint Intelligence Committee. Daily summary dated 18 December 1941

An item referred to CinC Br. Fe. Fleet reporting that three Russian merchant ships were bombed on 4-55 North 106°-45° East, around 300 miles northeast of Singapore.

Source

Map Room Papers (Roosevelt Administration) mr0422a. U.S. Joint Intelligence Committee. Daily summary No. 8 dated 18 December 1941.