 On 25 May 2009, Malaysian Navy and coastguards at the Ambalat were ordered to leave Ambalat waters by the Indonesian sea patrol KRI "Untung Suropati".Malaysian fast-attack vessel KD "Yu-3508" (Malaysian navy boat) on 04.03.00 LU/118.01.70 East Longitude position, and entered Indonesia territory at , clearly violating the UNCLOS on sea border territory.Lt.