None Japanese warships present in waters around Ceylon according to the U.S. Joint Intelligence Committee. Daily summary dated 20 April 1942

An item reported that according to Royal Air Force reconnaissance in the Ceylon area that there were no Japanese naval units present in those waters.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 131 dated 20 April 1942