 Pulau Laban is located at a distance of 11 miles from Keppel Harbour and was the intended forward point from which the attack was to be launched.On 10 October 1944, two hours before sunset and an hour before the raid was to commence, disaster struck.A coastal Malay Police patrol boat, the "Hei Ho", challenged the "Mustika" near Kasoe Island and Samboe Island.